The influence of hydrogen on the superconducting transition temperature in hydrogen-doped Zr sub 80 Co sub 20 metallic glasses

We report the results of a study of electrical resistivity and of the superconducting transition temperature, T sub c , in hydrogen-doped (Zr sub 80 Co sub 20 ) sub 1-x H sub x (x = 0, 0.02, 0.048, 0.11) metallic glasses. The increase of the room-temperature resistivity and its temperature coefficie...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 1999-08, Vol.284-288, p.1970-1971
Main Authors: Kokanovic, I, Leontic, B, Lukatela, J
Format: Article
Language:English
Online Access:Get full text
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Summary:We report the results of a study of electrical resistivity and of the superconducting transition temperature, T sub c , in hydrogen-doped (Zr sub 80 Co sub 20 ) sub 1-x H sub x (x = 0, 0.02, 0.048, 0.11) metallic glasses. The increase of the room-temperature resistivity and its temperature coefficient are explained as a consequence of increased disorder due to hydrogen doping. The temperature dependence of the resistivity has been analysed using theoretical models of weak-localisation and electron-electron interaction in disordered three-dimensional conductors. The hydrogen dopant lowers T sub c and broadens the superconducting transition region. We discuss the effect of different hydrogen environments on T sub c of (Zr sub 80 Co sub 20 ) sub 1-x H sub x metallic glasses.
ISSN:0921-4526