THERMODYNAMICALLY EQUILIBRIUM POINT DEFECTS IN THE LOW-DIMENSIONAL SYSTEMS
Author(s): A.A.Mamalui, T.N.Shelest, H.B.Chashka (Kharkiv State Polytechnic University, 21 Frunze Str., 310002 Kharkiv, Ukraine)
The temperature dependencies of the electrical resistance of low-dimensional NbSe$_3$- and NbSe$_2$-single crystals were investigated in the range of 300-540 K. Measurements of resistance were produced along the chains for quasi-one-dimensional NbSe$_3$-single crystal and along the layer for quasi-two-dimensional NbSe$_2$-single crystal. On the temperature dependencies the exponential deviations from linear dependencies were observed. We suppose that such deviations of resistance are connected with the contribution of selenium equilibrium vacancies.
Comments: Figs. 3, Refs. 5, Tabs. 0.
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