An AC magnetic susceptibility study of a sigma-phase Fe65.9V34.1 alloy

JOURNAL OF ALLOYS AND COMPOUNDS

卷:663

Article

Balanda, M.¹  Dubiel, S. M.² 

[1] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[2] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland

关键词: Fe-V alloy;    Sigma-phase;    AC magnetic susceptibility;    Reentrant magnetism;   

DOI  :  10.1016/j.jallcom.2015.11.054

来源: Elsevier

【 摘 要 】

A sigma-phase Fe65.9V34.1 alloy was investigated with the AC magnetic susceptibility as a function of temperature, frequency and external magnetic field. Evidence was found that its magnetism shows features characteristic of a reentrant behavior viz. two transitions: first at T-c similar to 312 K from the paramagnetic state into a collinear ferromagnetic one, and second at T-f similar to 302 K to a mixed state (sometimes referred to as a ferromagnetic or re-entrant spin glass) which, finally, at a lower temperature (T-RSG similar to 60 K) 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. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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