Magnetocaloric effect, electric, and dielectric properties of Nd
The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+)...
Ausführliche Beschreibung
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| Autor*in: |
Abdel-Latif, I.A. [verfasserIn] Ahmed, A.M. [verfasserIn] Mohamed, H.F. [verfasserIn] Saleh, S.A. [verfasserIn] Paixão, J.A. [verfasserIn] Ziq, Kh.A. [verfasserIn] Hamad, M.Kh. [verfasserIn] Al-Nahari, E.G. [verfasserIn] Ghozza, M. [verfasserIn] Allam, S. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2018 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Journal of magnetism and magnetic materials - Amsterdam : North-Holland Publ. Co., 1975, 457, Seite 126-134 |
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| Übergeordnetes Werk: |
volume:457 ; pages:126-134 |
| DOI / URN: |
10.1016/j.jmmm.2018.02.087 |
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| 520 | |a The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. | ||
| 650 | 4 | |a Magnetic phase transition | |
| 650 | 4 | |a Arrott plots | |
| 650 | 4 | |a Dielectric permittivity | |
| 650 | 4 | |a Magnetocaloric effect | |
| 700 | 1 | |a Ahmed, A.M. |e verfasserin |4 aut | |
| 700 | 1 | |a Mohamed, H.F. |e verfasserin |4 aut | |
| 700 | 1 | |a Saleh, S.A. |e verfasserin |4 aut | |
| 700 | 1 | |a Paixão, J.A. |e verfasserin |4 aut | |
| 700 | 1 | |a Ziq, Kh.A. |e verfasserin |4 aut | |
| 700 | 1 | |a Hamad, M.Kh. |e verfasserin |4 aut | |
| 700 | 1 | |a Al-Nahari, E.G. |e verfasserin |4 aut | |
| 700 | 1 | |a Ghozza, M. |e verfasserin |4 aut | |
| 700 | 1 | |a Allam, S. |e verfasserin |4 aut | |
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10.1016/j.jmmm.2018.02.087 doi (DE-627)ELV001881345 (ELSEVIER)S0304-8853(17)33544-8 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Abdel-Latif, I.A. verfasserin aut Magnetocaloric effect, electric, and dielectric properties of Nd 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. Magnetic phase transition Arrott plots Dielectric permittivity Magnetocaloric effect Ahmed, A.M. verfasserin aut Mohamed, H.F. verfasserin aut Saleh, S.A. verfasserin aut Paixão, J.A. verfasserin aut Ziq, Kh.A. verfasserin aut Hamad, M.Kh. verfasserin aut Al-Nahari, E.G. verfasserin aut Ghozza, M. verfasserin aut Allam, S. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 457, Seite 126-134 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:457 pages:126-134 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.16 Elektrizität Magnetismus AR 457 126-134 |
| spelling |
10.1016/j.jmmm.2018.02.087 doi (DE-627)ELV001881345 (ELSEVIER)S0304-8853(17)33544-8 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Abdel-Latif, I.A. verfasserin aut Magnetocaloric effect, electric, and dielectric properties of Nd 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. Magnetic phase transition Arrott plots Dielectric permittivity Magnetocaloric effect Ahmed, A.M. verfasserin aut Mohamed, H.F. verfasserin aut Saleh, S.A. verfasserin aut Paixão, J.A. verfasserin aut Ziq, Kh.A. verfasserin aut Hamad, M.Kh. verfasserin aut Al-Nahari, E.G. verfasserin aut Ghozza, M. verfasserin aut Allam, S. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 457, Seite 126-134 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:457 pages:126-134 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.16 Elektrizität Magnetismus AR 457 126-134 |
| allfields_unstemmed |
10.1016/j.jmmm.2018.02.087 doi (DE-627)ELV001881345 (ELSEVIER)S0304-8853(17)33544-8 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Abdel-Latif, I.A. verfasserin aut Magnetocaloric effect, electric, and dielectric properties of Nd 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. Magnetic phase transition Arrott plots Dielectric permittivity Magnetocaloric effect Ahmed, A.M. verfasserin aut Mohamed, H.F. verfasserin aut Saleh, S.A. verfasserin aut Paixão, J.A. verfasserin aut Ziq, Kh.A. verfasserin aut Hamad, M.Kh. verfasserin aut Al-Nahari, E.G. verfasserin aut Ghozza, M. verfasserin aut Allam, S. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 457, Seite 126-134 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:457 pages:126-134 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.16 Elektrizität Magnetismus AR 457 126-134 |
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10.1016/j.jmmm.2018.02.087 doi (DE-627)ELV001881345 (ELSEVIER)S0304-8853(17)33544-8 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Abdel-Latif, I.A. verfasserin aut Magnetocaloric effect, electric, and dielectric properties of Nd 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. Magnetic phase transition Arrott plots Dielectric permittivity Magnetocaloric effect Ahmed, A.M. verfasserin aut Mohamed, H.F. verfasserin aut Saleh, S.A. verfasserin aut Paixão, J.A. verfasserin aut Ziq, Kh.A. verfasserin aut Hamad, M.Kh. verfasserin aut Al-Nahari, E.G. verfasserin aut Ghozza, M. verfasserin aut Allam, S. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 457, Seite 126-134 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:457 pages:126-134 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.16 Elektrizität Magnetismus AR 457 126-134 |
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10.1016/j.jmmm.2018.02.087 doi (DE-627)ELV001881345 (ELSEVIER)S0304-8853(17)33544-8 DE-627 ger DE-627 rda eng 530 DE-600 33.16 bkl Abdel-Latif, I.A. verfasserin aut Magnetocaloric effect, electric, and dielectric properties of Nd 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. Magnetic phase transition Arrott plots Dielectric permittivity Magnetocaloric effect Ahmed, A.M. verfasserin aut Mohamed, H.F. verfasserin aut Saleh, S.A. verfasserin aut Paixão, J.A. verfasserin aut Ziq, Kh.A. verfasserin aut Hamad, M.Kh. verfasserin aut Al-Nahari, E.G. verfasserin aut Ghozza, M. verfasserin aut Allam, S. verfasserin aut Enthalten in Journal of magnetism and magnetic materials Amsterdam : North-Holland Publ. Co., 1975 457, Seite 126-134 Online-Ressource (DE-627)271175958 (DE-600)1479000-2 (DE-576)078412331 0304-8853 nnns volume:457 pages:126-134 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.16 Elektrizität Magnetismus AR 457 126-134 |
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Abdel-Latif, I.A. |
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530 DE-600 33.16 bkl Magnetocaloric effect, electric, and dielectric properties of Nd Magnetic phase transition Arrott plots Dielectric permittivity Magnetocaloric effect |
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ddc 530 bkl 33.16 misc Magnetic phase transition misc Arrott plots misc Dielectric permittivity misc Magnetocaloric effect |
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Abdel-Latif, I.A. Ahmed, A.M. Mohamed, H.F. Saleh, S.A. Paixão, J.A. Ziq, Kh.A. Hamad, M.Kh. Al-Nahari, E.G. Ghozza, M. Allam, S. |
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magnetocaloric effect, electric, and dielectric properties of nd |
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Magnetocaloric effect, electric, and dielectric properties of Nd |
| abstract |
The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. |
| abstractGer |
The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. |
| abstract_unstemmed |
The magnetocaloric effect (MCE) and electric-dielectric properties of the Nd-cobaltate perovskites Nd0.6Sr0.4Co1−xMnxO3 (x = 0, 0.3, 0.7 and 1) were investigated for possible use in magnetic cooling applications. Upon Mn substitution, the magnetic exchange interaction is affected by the (Mn4+/Mn3+) ratio, which in turn impacts several physical properties. The XRD patterns of the synthesized composites revealed a single phase with an orthorhombic structure with space group Pbnm (62). The orthorhombic lattice distortion increases linearly with the Mn content, reaching a maximum value (D = 7.377 × 10−3) for Nd0.6Sr0.4MnO3. The temperature and frequency dependence of the dielectric permittivity was studied and analyzed using Maxwell-Wagner interfacial polarization and Koops phenomenological theory. The rapid increase in magnetic susceptibility around the paramagnetic (PM)–ferromagnetic (FM) transition temperature TC is greatly affected by Mn substitution. The decrease in susceptibility with increasing temperature can be attributed to a charge ordering effect. The PM-FM transition occurs in the temperature range of 150–200 K. Moreover, the presence of spontaneous magnetization with second-order phase transitions is observed from Arrott plot isotherms. The MCE was also investigated by determining ΔSM and the relative cooling power (RCP), and the maximum value is found for Nd0.6Sr0.4Co0.3 Mn0.7O3. These results compare favorably with those reported for similar materials, indicating our materials as a possible candidate for use in magnetocaloric refrigerators. |
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Magnetocaloric effect, electric, and dielectric properties of Nd |
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| score |
7.400386 |