Electronic properties of hydrogen-doped (Zr_80 3d_20)_1-xH_x (3d = Fe, Co, Ni) metallic glasses

Scientific paper - Original scientific paper

• Author: Ivan Kokanović
• Author: Jagoda Lukatela
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

The electrical resistivities of hydrogen-doped (Zr_80 3d_20)_1-xH_x (3d = Fe, Co, Ni; x ≤ 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, τ_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 (Zr_80 3d_20)_1-xH_x metallic glasses.

• Keywords (english): electrical resistivity; metallic glasses; hydrogen-doped; disordered three-dimensional conductors; electron diffusion constant; spin-orbit scattering; superconducting transition temperature
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review
• Publication version: Published version
• Journal title: Fizika A
• Numbering: vol. 8, no. 3, pp. 113-122
• p-ISSN: 1330-0008
• URN:NBN: urn:nbn:hr:217:613644
• Publication: 1999
• Document URL: http://fizika.hfd.hr/fizika_a/av99/a8p113.htm
• Type of resource: Text
• Access conditions: Open access
• Created on: 2019-10-07 11:47:05