Open AccessЭлектропроводность FeGaInSe-=SUB=-4-=/SUB=- на переменном токе
Author(s) -
Н.Н. Нифтиев,
Ф.М. Мамедов,
М.Б. Мурадов
Publication year - 2020
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2020.06.49378.9346
Subject(s) - electrical resistivity and conductivity , conductivity , multiplet , condensed matter physics , materials science , crystal (programming language) , frequency dependence , nuclear magnetic resonance , chemistry , physics , spectral line , quantum mechanics , computer science , programming language
The results of studying frequency and temperature dependences of AC electrical conductivity in FeGaInSe4 crystals are presented. It was found in the frequency interval f = 5 • 104−106 Hz, the regularity σ ∝ fS (0.1 ≤ s ≤ 1.0) holds for electrical conductivity. From the temperuture dependences the activation energies were determined. It is shown that in the FeGaInSe4 crystal, the frequency dependence of electrical conductivity can be explained using the multiplet model, which means that the conductivity in these crystals is characterized by a band-hop mechanism.