FIZIKA A 8 (1999) 3 , 113-122

ELECTRONIC PROPERTIES OF HYDROGEN-DOPED (Zr₈₀3d₂₀)_1-xH_x
(3d = Fe, Co, Ni) METALLIC GLASSES

IVAN KOKANOVIĆ and JAGODA LUKATELA^a

Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
^aInstitute of Physics, P. O. Box 304, Zagreb, Croatia

Dedicated to Professor Boran Leontić on the occasion of his 70^th birthday

Received 12 November 1999; revised manuscript received 3 February 2000
Accepted 21 February 2000

The electrical resistivities of hydrogen-doped (Zr₈₀3d₂₀)_1-xH_x (3d = Fe, Co, Ni; x Ł 0.11) metallic glasses have been measured at temperatures between 2 K and 290 K. 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 is found to reduce effective electron diffusion constant, D, the spin-orbit scattering rate, t_so^-1, the superconducting transition temperature, T_c, and broadens the superconducting transition region. We discuss the effects of different hydrogen environments on T_c of (Zr₈₀3d₂₀)_1-xH_x metallic glasses.

PACS numbers: 74.70.-b, 75.20.-g
UDC 537.312, 538.95

Keywords: electrical resistivity, metallic glasses, (Zr₈₀3d₂₀)_1-xH_x (3d = Fe, Co, Ni; x Ł 0.11), hydrogen-doped, disordered three-dimensional conductors, electron diffusion constant, spin-orbit scattering, superconducting transition temperature

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