Magnetic Capacitance in Variable-Valence Manganese Sulfides

被引：2
|
作者：
Aplesnin, Sergey S. [1 ]
Kharkov, Anton M. [2 ]
Filipson, Gleb Yu [2 ]
机构：
[1] Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akademgorodok 50 Bld 38, Krasnoyarsk 660036, Russia
[2] Reshetnev Siberian State Univ Sci & Technol, Inst Space Technol, Krasnoyarskiy Rabochiy Ave 31, Krasnoyarsk 660037, Russia
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2020年 / 257卷 / 05期
基金：
俄罗斯基础研究基金会;
关键词：
Debye model; infrared spectroscopy; magnetocapacitance; permittivity; relaxation time;
D O I：
10.1002/pssb.201900637
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The permittivity of TmxMn1-xS (0 < x < 0.15) solid solutions is measured in the frequency range of 10(2)-10(6) Hz at temperatures of 300-500 K in magnetic fields of up to 12 kOe. The migration and relaxation conductivity contributions to the electric polarization are established. The relaxation time and activation energy are calculated using the Debye model. A decrease in the capacitance and relaxation time in a magnetic field is observed. The electron polarization relaxation channel provided by recombination of the electron-hole pairs is found using the infrared spectroscopy investigations.
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页数：6
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