Open AccessЭлектропроводность монокристаллов MnGaInSе-=SUB=-4-=/SUB=- на переменном токе
Author(s) -
Н.Н. Нифтиев,
Ф.М. Мамедов,
М.Б. Мурадов
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.11.49493.18241
Subject(s) - electrical resistivity and conductivity , conductivity , multiplet , condensed matter physics , materials science , single crystal , atmospheric temperature range , nuclear magnetic resonance , chemistry , physics , thermodynamics , spectral line , quantum mechanics
The results of studying the frequency and temperature dependences of the electrical conductivity of MnGaInSe4 single crystals on alternating electric current are presented. It was found that in the temperature range of 295.5–360 K at frequencies of 2•104–106 Hz, the regularity σ ∼ fS (0.1≤ s≤1.0) holds for electrical conductivity. It is shown that in the MnGaInSe4 single crystal the frequency dependence of electrical conductivity can be explained using the multiplet model, and the conductivity in these single crystals is characterized by a band-hop mechanism. Based on the dependences log σ ∼ 103/T, the activation energies are determined.