Resistivity of spin-glasses

Scientific paper - Original scientific paper

• Author: I. A. Campbell
• Author: P. J. Ford
• Author: Amir Hamzić; MBZ: 15234
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

We analyze experimental data on the temperature-dependent part of the resistivity of AuFe, CuMn, AgMn, AuMn, and AuCr spin-glass alloys, using a model derived from the excitation approach of Walker and Walstedt. The model gives a satisfactory description of the experimental behavior for all the alloys. We find an energy scaling parameter for the excitation density of states that turns out to be approximately proportional to the spin-glass freezing temperature Tg. From the resistivity results we can estimate the local spin-relaxation time.

• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review B (Condensed Matter)
• Numbering: vol. 26, no. 9, pp. 5195-5206
• p-ISSN: 0163-1829
• DOI: https://doi.org/10.1103/PhysRevB.26.5195
• URN:NBN: urn:nbn:hr:217:733439
• Publication: 1982
• Document URL: http://dx.doi.org/10.1103/PhysRevB.26.5195
• Type of resource: Text
• Access conditions: Open access
• Public note: Copyright (1982) by the American Physical Society.
• Created on: 2019-09-26 11:42:46