Reentrant Mixed Phase Transition in a Metallic Spin-Glass Alloy

Fumitaka Matsubara; Katsunori Morishita; Sakari Inawashiro

doi:10.1143/jpsj.63.416

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Reentrant Mixed Phase Transition in a Metallic Spin-Glass Alloy

Fumitaka Matsubara, Katsunori Morishita, Sakari Inawashiro

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Keywords: RKKY model, dilute alloy, dilute magnet, spin glass, reentrant, mixed phase, phase transition

JOURNAL RESTRICTED ACCESS

1994 Volume 63 Issue 2 Pages 416-419

DOI https://doi.org/10.1143/jpsj.63.416

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Abstract

We study a dilute system of the classical Heisenberg spins coupled via the Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction just above its critical concentration of the ferromagnetic phase using a hybrid Monte-Carlo spin-dynamics method. We find for the first time in finite-range models that the system exhibits a reentrant phase transition from a ferromagnetic phase to a mixed phase of the ferromagnetism and the transverse spin glass.

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