Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Dielectric nonlinearity and polarization anharmonicity of BaTiO3. / Wang, Y. L.; Tagantsev, A. K.; Damjanovic, D.; Setter, N.; Yarmarkin, V. K.; Sokolov, A. I.; Lukyanchuk, I. A.
2006 15th IEEE International Symposium on Applications of Ferroelectrics, ISAF. 2006. 4349298.Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
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TY - GEN
T1 - Dielectric nonlinearity and polarization anharmonicity of BaTiO3
AU - Wang, Y. L.
AU - Tagantsev, A. K.
AU - Damjanovic, D.
AU - Setter, N.
AU - Yarmarkin, V. K.
AU - Sokolov, A. I.
AU - Lukyanchuk, I. A.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - By analyzing Landau's phenomenologieal thermodynamic potential, we propose a few ways to assess the importance of eighth-power terms and to verify the temperature dependence of the anharmonic coefficients. It is demonstrated that the eighth-power terms should be substantially involved for the adequate description of the thermodynamic behavior of BaTiO3 around the cubic-tetragonal phase transition. In addition, the temperature dependence of the anharmonic coefficients (at least of the quartic coefficients) is experimentally evidenced to be essential. Both necessities attest to the anomalously strong anharmonicity of this substance.
AB - By analyzing Landau's phenomenologieal thermodynamic potential, we propose a few ways to assess the importance of eighth-power terms and to verify the temperature dependence of the anharmonic coefficients. It is demonstrated that the eighth-power terms should be substantially involved for the adequate description of the thermodynamic behavior of BaTiO3 around the cubic-tetragonal phase transition. In addition, the temperature dependence of the anharmonic coefficients (at least of the quartic coefficients) is experimentally evidenced to be essential. Both necessities attest to the anomalously strong anharmonicity of this substance.
KW - Anharmonicity
KW - Barium titanate
KW - Dielectric nonlinearity
UR - http://www.scopus.com/inward/record.url?scp=50249144197&partnerID=8YFLogxK
U2 - 10.1109/ISAF.2006.4349298
DO - 10.1109/ISAF.2006.4349298
M3 - Conference contribution
AN - SCOPUS:50249144197
SN - 142441332X
SN - 9781424413324
BT - 2006 15th IEEE International Symposium on Applications of Ferroelectrics, ISAF
T2 - 2006 15th IEEE International Symposium on Applications of Ferroelectrics, ISAF
Y2 - 30 July 2006 through 3 August 2006
ER -
ID: 36749066