Relating field-induced shift in transition temperature to the kinetics of coexisting phases in magnetic shape memory alloys

被引：23

作者：

Banerjee, A. ^{[1
]}

Dash, S. ^{[1
]}

Lakhani, Archana ^{[1
]}

Chaddah, P. ^{[1
]}

Chen, X. ^{[2
]}

Ramanujan, R. V. ^{[2
]}

机构：

[1] UGC DAE Consortium Sci Res, Indore 452001, Madhya Pradesh, India

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

SOLID STATE COMMUNICATIONS | 2011年 / 151卷 / 14-15期

关键词：

Magnetically ordered materials; Metals; Phase transitions; Thermodynamic properties;

D O I：

10.1016/j.ssc.2011.05.009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In a magnetic shape memory alloy system, we vary composition following phenomenological arguments to tune macroscopic properties. We achieve significantly higher shift in austenite to martensitic phase transition temperature with magnetic field. This enhancement is accompanied by significant broadening of the transition and by field-induced arrest of kinetics, both of which are related to the dynamics of the coexisting phases. This reveals hitherto unknown interrelationship between different length scales. This may serve as an effective route for comprehensive understanding of similar multicomponent systems which show considerable variation in physical properties by minor change in microscopic parameters. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：971 / 975

页数：5

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