Dynamics of the first-order magnetostructural transition in Gd5(SixGe1-x)4

被引：22

作者：

Casanova, F

Labarta, A

Batlle, X

Vives, E

Marcos, J

Mañosa, L

Planes, A

机构：

[1] Univ Barcelona, Dept Fis Fonamental, E-08028 Barcelona, Spain

[2] Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

来源：

EUROPEAN PHYSICAL JOURNAL B | 2004年 / 40卷 / 04期

关键词：

D O I：

10.1140/epjb/e2004-00274-x

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The dynamics at a mesoscopic scale of the first-order magnetostructural transition in a Gd-5(Si (x) Ge1-x )(4) alloy with x = 0.05 is studied. We examine the effect of inducing the transition either by T or H on the entropy change. In addition, we analyse the avalanches between metastable states during the transition. The athermal character of the transition is evidenced. It is also shown that cycling through the transition leads to a reproducible pattern with no characteristic size of the avalanches.

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页码：427 / 431

页数：5

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