AC magnetic susceptibility study of a sigma-phase Fe65.9V34.1 alloy
Abstract
A sigma-phase Fe65.9V34.1 alloy was investigated with the AC magnetic susceptibility as a function of temperature, frequency and external magnetic field. An evidence was found that its magnetism shows features characteristic of a reentrant behavior viz. two transitions: first at TC ca.312K from the paramagnetic state into the collinear ferromagnetic one, and second at Tf ca.302K to a mixed state (sometimes termed as a ferromagnetic re-entrant spin glass) which, finally, at a lower temperature (TRSG ca.60K) transforms to a state where replica symmetry is broken. The frequency dependence of Tf is lower than that of canonical spin glasses, a feature, that in the light of a high concentration of magnetic carriers, can be understood in terms of a weak coupling between magnetic clusters.
Keywords
Cite
@article{arxiv.1509.03719,
title = {AC magnetic susceptibility study of a sigma-phase Fe65.9V34.1 alloy},
author = {Maria Balanda and Stanislaw M. Dubiel},
journal= {arXiv preprint arXiv:1509.03719},
year = {2015}
}
Comments
11 pages, 7 figures, 25 references