Open AccessMagnetocapacity of manganese sulphides substituted by thulium ions
Author(s) -
А М Харьков,
М. Н. Ситников,
В. В. Кретинин,
Olga Fisenko,
G Yu Fillipson
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/822/1/012024
Subject(s) - magnetocapacitance , dielectric , permittivity , thulium , materials science , manganese , ion , condensed matter physics , dissipation factor , dielectric permittivity , electron , dielectric loss , analytical chemistry (journal) , magnetic field , atmospheric temperature range , chemistry , thermodynamics , physics , metallurgy , optoelectronics , multiferroics , organic chemistry , doping , quantum mechanics , chromatography , ferroelectricity
The capacity and the dielectric loss tangent of a Tm x Mn 1-x S (x=0.05, x=0.1) solid solution in the frequency range (1–300) kHz without field H=0 and in a magnetic field of H=8 kOe in the temperature range (80–500) K were measured. The increase of dielectric permittivity and the maximum of dielectric losses at high temperatures were found. The shift of the maximum of the imaginary part of the permittivity towards high temperatures with increasing concentration is found. The magnetocapacitance effect for two compositions and change the sign of magnetocapacity with increasing concentration were revealed. The magnetocapacity is explained in terms of the model with orbital electron ordering.