Features of the low-frequency polarization response in the region of the ferroelectric phase transition in multiferroic TbMnO3

被引：2
|
作者：
Trepakov, V. A. [1 ,2 ]
Kvyatkovskii, O. E. [1 ]
Savinov, M. E. [2 ]
Dejneka, A. [2 ]
Wang, X. [3 ,4 ]
Cheong, S. -W. [3 ,4 ]
机构：
[1] Russian Acad Sci, Ioffe Phys Tech Inst, Politekhnicheskaya Ul 26, St Petersburg 194021, Russia
[2] Czech Acad Sci, Inst Phys, Slovance 2, Prague 18221, Czech Republic
[3] Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA
[4] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA
来源：
PHYSICS OF THE SOLID STATE | 2016年 / 58卷 / 10期
关键词：
D O I：
10.1134/S1063783416100383
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The unusual behavior of the low-frequency (10 Hz-1 MHz) permittivity in single crystals of ferroelectric multiferroic TbMnO3 has been experimentally and theoretically studied in detail in the region of the narrow temperature peak of the permittivity, associated with the ferroelectric phase transition (T (C) similar to 27.4 K). It has been found that the epsilon (c) (') (omega, T) maximum sharply decreases with increasing measured field frequency, while the temperature position of the maximum is independent of frequency. It has been shown that the observed features of the polarization response can be satisfactorily described within the Landau-Khalatnikov polarization relaxation theory.
引用
收藏
页码：2021 / 2026
页数：6
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