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Magnetic Capacitance in Variable‐Valence Manganese Sulfides
Author(s) -
Aplesnin Sergey S.,
Kharkov Anton M.,
Filipson Gleb Yu
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201900637
Subject(s) - condensed matter physics , permittivity , capacitance , magnetic field , relaxation (psychology) , spectroscopy , polarization (electrochemistry) , electron , valence (chemistry) , manganese , activation energy , debye , analytical chemistry (journal) , materials science , chemistry , electrical resistivity and conductivity , conductivity , dielectric , nuclear magnetic resonance , physics , electrode , optoelectronics , organic chemistry , chromatography , psychology , social psychology , quantum mechanics , metallurgy
The permittivity of Tm x Mn 1– x S (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.