Electrical resistance, magnetic susceptibility, and specific heat of layered compounds 2H-NbSe2 and NbSe2-WSe2 solutions

A study is made of the temperature dependence of the electrical resistance from the superconductivity transition up to 300°K, and the specific heat in the interval T ≈90–130°K for the layered compounds NbSe2 and solutions Nb1–xWxSe2 (x=0.05, 0.10, 0.15). The two-stage character of the structural transition with generation of a charge density wave and also the effect of tungsten impurities on the temperature of the structural and supercondctivity transitions is discussed.

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