Influence of hydrogen on the superconducting and the paramagnetic properties of some Zr-3d metallic glasses

Kokanović, Ivan and Leontić, Boran and Lukatela, Jagoda (1995) Influence of hydrogen on the superconducting and the paramagnetic properties of some Zr-3d metallic glasses. Fizika A, 4 (3). pp. 615-622. ISSN 1330-0008

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Abstract

We present the experimental results on the effects of hydrogen doping on the superconducting and paramagnetic properties of zirconium-rich (x > 0.66) Zr_x3d_1-x metallic glasses. Zr_0.70Cu_0.30, Zr_0.67Ni_0.33 and Zr_0.67Co_0.33 are superconductors with a superconducting transition temperature in the vicinity of 2 K, while Zr_0.68Fe_0.32 is a paramagnet down to very low temperatures because of pronounced spin-fluctuations. The magnetoresistivity data are analysed using theoretical models of weak location and electron-electron interactions. Doping with hydrogen reduces the superconducting transition temperature in Zr_0.70Cu_0.30, Zr_0.67Ni_0.33 and Zr_0.67Co_0.33 metallic glasses. The magnetoresistivity enhancement of hydrogen-doped Zr_0.68Fe_0.32 has been attributed to the increase of the Stoner factor, (1-I)^-1. That increase indicates an enhancement of spin fluctuations with hydrogen.

Item Type: Article
Date: 1995
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Publisher: Hrvatsko fizikalno društvo
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 21 Mar 2014 21:10
Last Modified: 21 Mar 2014 21:10
URI: http://digre.pmf.unizg.hr/id/eprint/695

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