Open AccessЭлектрические свойства интеркалированных соединений Ag-=SUB=-x-=/SUB=-MoSe-=SUB=-2-=/SUB=- в постоянном и переменном полях
Author(s) -
V. G. Pleshchëv,
N. V. Melnikova,
Н. В. Селезнева
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.07.46110.362
Subject(s) - electrical resistivity and conductivity , materials science , conductivity , relaxation (psychology) , dielectric spectroscopy , direct current , thermal conduction , dispersion (optics) , electrical impedance , condensed matter physics , alternating current , analytical chemistry (journal) , atmospheric temperature range , optics , chemistry , thermodynamics , voltage , composite material , electrical engineering , electrode , physics , electrochemistry , psychology , social psychology , chromatography , engineering
On intercalated Ag_ x MoSe_2 samples, in addition to temperature measurements of the direct current electrical resistivity, measurements of the alternating current resistivity using the impedance spectroscopy technique are carried out in a wide frequency range and at different temperatures. The activation behavior of the d.c. conductivity, which increases with increasing silver content in the samples, is shown. The a.c. conductivity undergoes frequency dispersion, described by a “universal dynamic response” (UDR). It is shown that the relaxation processes during charge transfer in a variable field are accelerated with increasing silver content in the samples and with increasing temperature. The data obtained are analyzed using the models of the band and hopping conduction.