Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys
Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room...
Ausführliche Beschreibung
Autor*in: |
Zheng, Xiaoping [verfasserIn] Zhang, Peifeng [verfasserIn] Fan, Duowang [verfasserIn] Li, Fashen [verfasserIn] Hao, Yuan [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2006 |
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Übergeordnetes Werk: |
Enthalten in: Science in China - Heidelberg : Springer, 2003, 49(2006), 2 vom: 26. März, Seite 149-157 |
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Übergeordnetes Werk: |
volume:49 ; year:2006 ; number:2 ; day:26 ; month:03 ; pages:149-157 |
Links: |
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DOI / URN: |
10.1007/s11433-006-0149-5 |
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Katalog-ID: |
SPR019332254 |
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245 | 1 | 0 | |a Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys |
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520 | |a Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. | ||
650 | 4 | |a magnetostriction |7 (dpeaa)DE-He213 | |
650 | 4 | |a cubic Laves phase |7 (dpeaa)DE-He213 | |
650 | 4 | |a spin reorientation |7 (dpeaa)DE-He213 | |
650 | 4 | |a Mössbauer |7 (dpeaa)DE-He213 | |
700 | 1 | |a Zhang, Peifeng |e verfasserin |4 aut | |
700 | 1 | |a Fan, Duowang |e verfasserin |4 aut | |
700 | 1 | |a Li, Fashen |e verfasserin |4 aut | |
700 | 1 | |a Hao, Yuan |e verfasserin |4 aut | |
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10.1007/s11433-006-0149-5 doi (DE-627)SPR019332254 (SPR)s11433-006-0149-5-e DE-627 ger DE-627 rakwb eng 530 520 ASE 33.00 bkl 39.00 bkl Zheng, Xiaoping verfasserin aut Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. magnetostriction (dpeaa)DE-He213 cubic Laves phase (dpeaa)DE-He213 spin reorientation (dpeaa)DE-He213 Mössbauer (dpeaa)DE-He213 Zhang, Peifeng verfasserin aut Fan, Duowang verfasserin aut Li, Fashen verfasserin aut Hao, Yuan verfasserin aut Enthalten in Science in China Heidelberg : Springer, 2003 49(2006), 2 vom: 26. März, Seite 149-157 (DE-627)385614799 (DE-600)2142901-7 1862-2844 nnns volume:49 year:2006 number:2 day:26 month:03 pages:149-157 https://dx.doi.org/10.1007/s11433-006-0149-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE 39.00 ASE AR 49 2006 2 26 03 149-157 |
spelling |
10.1007/s11433-006-0149-5 doi (DE-627)SPR019332254 (SPR)s11433-006-0149-5-e DE-627 ger DE-627 rakwb eng 530 520 ASE 33.00 bkl 39.00 bkl Zheng, Xiaoping verfasserin aut Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. magnetostriction (dpeaa)DE-He213 cubic Laves phase (dpeaa)DE-He213 spin reorientation (dpeaa)DE-He213 Mössbauer (dpeaa)DE-He213 Zhang, Peifeng verfasserin aut Fan, Duowang verfasserin aut Li, Fashen verfasserin aut Hao, Yuan verfasserin aut Enthalten in Science in China Heidelberg : Springer, 2003 49(2006), 2 vom: 26. März, Seite 149-157 (DE-627)385614799 (DE-600)2142901-7 1862-2844 nnns volume:49 year:2006 number:2 day:26 month:03 pages:149-157 https://dx.doi.org/10.1007/s11433-006-0149-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE 39.00 ASE AR 49 2006 2 26 03 149-157 |
allfields_unstemmed |
10.1007/s11433-006-0149-5 doi (DE-627)SPR019332254 (SPR)s11433-006-0149-5-e DE-627 ger DE-627 rakwb eng 530 520 ASE 33.00 bkl 39.00 bkl Zheng, Xiaoping verfasserin aut Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. magnetostriction (dpeaa)DE-He213 cubic Laves phase (dpeaa)DE-He213 spin reorientation (dpeaa)DE-He213 Mössbauer (dpeaa)DE-He213 Zhang, Peifeng verfasserin aut Fan, Duowang verfasserin aut Li, Fashen verfasserin aut Hao, Yuan verfasserin aut Enthalten in Science in China Heidelberg : Springer, 2003 49(2006), 2 vom: 26. März, Seite 149-157 (DE-627)385614799 (DE-600)2142901-7 1862-2844 nnns volume:49 year:2006 number:2 day:26 month:03 pages:149-157 https://dx.doi.org/10.1007/s11433-006-0149-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE 39.00 ASE AR 49 2006 2 26 03 149-157 |
allfieldsGer |
10.1007/s11433-006-0149-5 doi (DE-627)SPR019332254 (SPR)s11433-006-0149-5-e DE-627 ger DE-627 rakwb eng 530 520 ASE 33.00 bkl 39.00 bkl Zheng, Xiaoping verfasserin aut Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. magnetostriction (dpeaa)DE-He213 cubic Laves phase (dpeaa)DE-He213 spin reorientation (dpeaa)DE-He213 Mössbauer (dpeaa)DE-He213 Zhang, Peifeng verfasserin aut Fan, Duowang verfasserin aut Li, Fashen verfasserin aut Hao, Yuan verfasserin aut Enthalten in Science in China Heidelberg : Springer, 2003 49(2006), 2 vom: 26. März, Seite 149-157 (DE-627)385614799 (DE-600)2142901-7 1862-2844 nnns volume:49 year:2006 number:2 day:26 month:03 pages:149-157 https://dx.doi.org/10.1007/s11433-006-0149-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE 39.00 ASE AR 49 2006 2 26 03 149-157 |
allfieldsSound |
10.1007/s11433-006-0149-5 doi (DE-627)SPR019332254 (SPR)s11433-006-0149-5-e DE-627 ger DE-627 rakwb eng 530 520 ASE 33.00 bkl 39.00 bkl Zheng, Xiaoping verfasserin aut Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. magnetostriction (dpeaa)DE-He213 cubic Laves phase (dpeaa)DE-He213 spin reorientation (dpeaa)DE-He213 Mössbauer (dpeaa)DE-He213 Zhang, Peifeng verfasserin aut Fan, Duowang verfasserin aut Li, Fashen verfasserin aut Hao, Yuan verfasserin aut Enthalten in Science in China Heidelberg : Springer, 2003 49(2006), 2 vom: 26. März, Seite 149-157 (DE-627)385614799 (DE-600)2142901-7 1862-2844 nnns volume:49 year:2006 number:2 day:26 month:03 pages:149-157 https://dx.doi.org/10.1007/s11433-006-0149-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE 39.00 ASE AR 49 2006 2 26 03 149-157 |
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English |
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Enthalten in Science in China 49(2006), 2 vom: 26. März, Seite 149-157 volume:49 year:2006 number:2 day:26 month:03 pages:149-157 |
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Enthalten in Science in China 49(2006), 2 vom: 26. März, Seite 149-157 volume:49 year:2006 number:2 day:26 month:03 pages:149-157 |
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magnetostriction cubic Laves phase spin reorientation Mössbauer |
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Science in China |
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Zheng, Xiaoping @@aut@@ Zhang, Peifeng @@aut@@ Fan, Duowang @@aut@@ Li, Fashen @@aut@@ Hao, Yuan @@aut@@ |
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2006-03-26T00:00:00Z |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR019332254</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220111065637.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201006s2006 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s11433-006-0149-5</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR019332254</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s11433-006-0149-5-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">530</subfield><subfield code="a">520</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">33.00</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">39.00</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Zheng, Xiaoping</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2006</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">magnetostriction</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">cubic Laves phase</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">spin reorientation</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mössbauer</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhang, Peifeng</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fan, Duowang</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Li, Fashen</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hao, Yuan</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Science in China</subfield><subfield code="d">Heidelberg : Springer, 2003</subfield><subfield code="g">49(2006), 2 vom: 26. 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author |
Zheng, Xiaoping |
spellingShingle |
Zheng, Xiaoping ddc 530 bkl 33.00 bkl 39.00 misc magnetostriction misc cubic Laves phase misc spin reorientation misc Mössbauer Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys |
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530 520 ASE 33.00 bkl 39.00 bkl Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys magnetostriction (dpeaa)DE-He213 cubic Laves phase (dpeaa)DE-He213 spin reorientation (dpeaa)DE-He213 Mössbauer (dpeaa)DE-He213 |
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ddc 530 bkl 33.00 bkl 39.00 misc magnetostriction misc cubic Laves phase misc spin reorientation misc Mössbauer |
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Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys |
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Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys |
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Zheng, Xiaoping Zhang, Peifeng Fan, Duowang Li, Fashen Hao, Yuan |
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Elektronische Aufsätze |
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Zheng, Xiaoping |
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structure, spin reorientation and mössbauer effect studies of $ tb_{0.3} %$ dy_{0.7} $($ fe_{1−x} %$ al_{x} $)1.95 alloys |
title_auth |
Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys |
abstract |
Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. |
abstractGer |
Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. |
abstract_unstemmed |
Abstract The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrystalline $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 is the $ MgCu_{2} $-type cubic Laves phase structure when x < 0.4 and the lattice constant a of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 increases approximately and monotonically with the increase of x. The substitution of Al leads to the fact that the magnetostriction λ inceases slightly in a low magnetic field (H ⩽ 40 kA/m), but decreases sharply and is easily close to saturation in a high applied field as x increases, showing that a small amount of Al substitution is beneficial to a decrease in the magnetocrystalline anisotropy. It was also found that the spontaneous magnetostriction λ111 decreases greatly with x increasing. The analysis of the Mössbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the changes of composition and temperature, namely spin reorientation. A small amount of non-magnetic phase exists for x = 0.15 in $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys and the alloys become paramagnetic for x > 0.15 at room temperature, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field decreases and the isomer shifts increase with Al concentration increasing. |
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2 |
title_short |
Structure, spin reorientation and Mössbauer effect studies of $ Tb_{0.3} %$ Dy_{0.7} $($ Fe_{1−x} %$ Al_{x} $)1.95 alloys |
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https://dx.doi.org/10.1007/s11433-006-0149-5 |
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Zhang, Peifeng Fan, Duowang Li, Fashen Hao, Yuan |
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score |
7.401634 |