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Fizika Tverdogo Tela, 2018 Volume 60, Issue 7, Pages 1283–1289 (Mi ftt9122)

Semiconductors

Electrical properties of intercalated Ag$_{x}$MoSe$_{2}$ compounds in constant and alternating fields

V. G. Pleshchev, N. V. Melnikova, N. V. Selezneva

Institute of Natural Sciences and Mathematics, Ural Federal University, Yekaterinburg, Russia

Abstract: 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.

Received: 27.12.2017

DOI: 10.21883/FTT.2018.07.46110.362


 English version:
Physics of the Solid State, 2018, 60:7, 1287–1293

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© Steklov Math. Inst. of RAS, 2025