Enhancement of the dielectric permittivity and magnetic properties of Dy substituted strontium titanate ceramics
Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr...
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Gespeichert in:
| Autor*in: |
Tkach, Alexander [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
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2018transfer abstract |
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7 |
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| Übergeordnetes Werk: |
Enthalten in: Improved differential evolution for RSSD-based localization in Gaussian mixture noise - Zhang, Yuanyuan ELSEVIER, 2023, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:38 ; year:2018 ; number:2 ; pages:605-611 ; extent:7 |
| Links: |
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| DOI / URN: |
10.1016/j.jeurceramsoc.2017.09.007 |
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ELV041080793 |
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| 245 | 1 | 0 | |a Enhancement of the dielectric permittivity and magnetic properties of Dy substituted strontium titanate ceramics |
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| 520 | |a Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. | ||
| 520 | |a Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. | ||
| 650 | 7 | |a Donor doping |2 Elsevier | |
| 650 | 7 | |a Paramagnetism |2 Elsevier | |
| 650 | 7 | |a Polar clusters |2 Elsevier | |
| 650 | 7 | |a Interfacial polarization |2 Elsevier | |
| 650 | 7 | |a Electroceramics |2 Elsevier | |
| 700 | 1 | |a Amaral, João S. |4 oth | |
| 700 | 1 | |a Zlotnik, Sebastian |4 oth | |
| 700 | 1 | |a Amaral, Vítor S. |4 oth | |
| 700 | 1 | |a Vilarinho, Paula M. |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Zhang, Yuanyuan ELSEVIER |t Improved differential evolution for RSSD-based localization in Gaussian mixture noise |d 2023 |g Amsterdam [u.a.] |w (DE-627)ELV009961755 |
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10.1016/j.jeurceramsoc.2017.09.007 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001035.pica (DE-627)ELV041080793 (ELSEVIER)S0955-2219(17)30586-1 DE-627 ger DE-627 rakwb eng 004 VZ 54.00 bkl Tkach, Alexander verfasserin aut Enhancement of the dielectric permittivity and magnetic properties of Dy substituted strontium titanate ceramics 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Donor doping Elsevier Paramagnetism Elsevier Polar clusters Elsevier Interfacial polarization Elsevier Electroceramics Elsevier Amaral, João S. oth Zlotnik, Sebastian oth Amaral, Vítor S. oth Vilarinho, Paula M. oth Enthalten in Elsevier Science Zhang, Yuanyuan ELSEVIER Improved differential evolution for RSSD-based localization in Gaussian mixture noise 2023 Amsterdam [u.a.] (DE-627)ELV009961755 volume:38 year:2018 number:2 pages:605-611 extent:7 https://doi.org/10.1016/j.jeurceramsoc.2017.09.007 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.00 Informatik: Allgemeines VZ AR 38 2018 2 605-611 7 |
| spelling |
10.1016/j.jeurceramsoc.2017.09.007 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001035.pica (DE-627)ELV041080793 (ELSEVIER)S0955-2219(17)30586-1 DE-627 ger DE-627 rakwb eng 004 VZ 54.00 bkl Tkach, Alexander verfasserin aut Enhancement of the dielectric permittivity and magnetic properties of Dy substituted strontium titanate ceramics 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Donor doping Elsevier Paramagnetism Elsevier Polar clusters Elsevier Interfacial polarization Elsevier Electroceramics Elsevier Amaral, João S. oth Zlotnik, Sebastian oth Amaral, Vítor S. oth Vilarinho, Paula M. oth Enthalten in Elsevier Science Zhang, Yuanyuan ELSEVIER Improved differential evolution for RSSD-based localization in Gaussian mixture noise 2023 Amsterdam [u.a.] (DE-627)ELV009961755 volume:38 year:2018 number:2 pages:605-611 extent:7 https://doi.org/10.1016/j.jeurceramsoc.2017.09.007 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.00 Informatik: Allgemeines VZ AR 38 2018 2 605-611 7 |
| allfields_unstemmed |
10.1016/j.jeurceramsoc.2017.09.007 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001035.pica (DE-627)ELV041080793 (ELSEVIER)S0955-2219(17)30586-1 DE-627 ger DE-627 rakwb eng 004 VZ 54.00 bkl Tkach, Alexander verfasserin aut Enhancement of the dielectric permittivity and magnetic properties of Dy substituted strontium titanate ceramics 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Donor doping Elsevier Paramagnetism Elsevier Polar clusters Elsevier Interfacial polarization Elsevier Electroceramics Elsevier Amaral, João S. oth Zlotnik, Sebastian oth Amaral, Vítor S. oth Vilarinho, Paula M. oth Enthalten in Elsevier Science Zhang, Yuanyuan ELSEVIER Improved differential evolution for RSSD-based localization in Gaussian mixture noise 2023 Amsterdam [u.a.] (DE-627)ELV009961755 volume:38 year:2018 number:2 pages:605-611 extent:7 https://doi.org/10.1016/j.jeurceramsoc.2017.09.007 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.00 Informatik: Allgemeines VZ AR 38 2018 2 605-611 7 |
| allfieldsGer |
10.1016/j.jeurceramsoc.2017.09.007 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001035.pica (DE-627)ELV041080793 (ELSEVIER)S0955-2219(17)30586-1 DE-627 ger DE-627 rakwb eng 004 VZ 54.00 bkl Tkach, Alexander verfasserin aut Enhancement of the dielectric permittivity and magnetic properties of Dy substituted strontium titanate ceramics 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Donor doping Elsevier Paramagnetism Elsevier Polar clusters Elsevier Interfacial polarization Elsevier Electroceramics Elsevier Amaral, João S. oth Zlotnik, Sebastian oth Amaral, Vítor S. oth Vilarinho, Paula M. oth Enthalten in Elsevier Science Zhang, Yuanyuan ELSEVIER Improved differential evolution for RSSD-based localization in Gaussian mixture noise 2023 Amsterdam [u.a.] (DE-627)ELV009961755 volume:38 year:2018 number:2 pages:605-611 extent:7 https://doi.org/10.1016/j.jeurceramsoc.2017.09.007 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.00 Informatik: Allgemeines VZ AR 38 2018 2 605-611 7 |
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10.1016/j.jeurceramsoc.2017.09.007 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001035.pica (DE-627)ELV041080793 (ELSEVIER)S0955-2219(17)30586-1 DE-627 ger DE-627 rakwb eng 004 VZ 54.00 bkl Tkach, Alexander verfasserin aut Enhancement of the dielectric permittivity and magnetic properties of Dy substituted strontium titanate ceramics 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. Donor doping Elsevier Paramagnetism Elsevier Polar clusters Elsevier Interfacial polarization Elsevier Electroceramics Elsevier Amaral, João S. oth Zlotnik, Sebastian oth Amaral, Vítor S. oth Vilarinho, Paula M. oth Enthalten in Elsevier Science Zhang, Yuanyuan ELSEVIER Improved differential evolution for RSSD-based localization in Gaussian mixture noise 2023 Amsterdam [u.a.] (DE-627)ELV009961755 volume:38 year:2018 number:2 pages:605-611 extent:7 https://doi.org/10.1016/j.jeurceramsoc.2017.09.007 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 54.00 Informatik: Allgemeines VZ AR 38 2018 2 605-611 7 |
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Enthalten in Improved differential evolution for RSSD-based localization in Gaussian mixture noise Amsterdam [u.a.] volume:38 year:2018 number:2 pages:605-611 extent:7 |
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Improved differential evolution for RSSD-based localization in Gaussian mixture noise |
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In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. 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enhancement of the dielectric permittivity and magnetic properties of dy substituted strontium titanate ceramics |
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Enhancement of the dielectric permittivity and magnetic properties of Dy substituted strontium titanate ceramics |
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Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. |
| abstractGer |
Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. |
| abstract_unstemmed |
Structural, dielectric and magnetic properties of dense Dy-substituted strontium titanate ceramics are investigated. In the Sr1-1.5x Dy x TiO3 system, incorporation of Dy onto the Sr site is confirmed by a linear decrease of the lattice parameter up to x =0.05. Dielectric spectroscopy analysis of Sr1-1.5x Dy x TiO3 ceramics reveals four relaxations. Two relaxations observed below 55K are attributed to dipoles formed by off-centre displacement of Dy3+ ions on the Sr sites. Other two dielectric relaxations found at higher temperatures are attributed to the oxygen vacancy related mechanisms. As result, very high dielectric permittivity of ∼33500 at 28K and of ∼9600 around room temperature at moderate dissipation factor of ∼0.02 are obtained for Sr0.985Dy0.01TiO3 ceramics, making it a promising material for capacitor electronic applications. Paramagnetic behaviour observed for Sr1-1.5x Dy x TiO3 as well as for Sr1-x Dy2x Ti1-x O3 ceramics indicates impossibility to induce a magnetic order and hence magnetoelectric coupling in strontium titanate by Dy substitution. |
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