Magnetic properties of Ni2+xMn1-xIn Heusler alloys: Theory and experiment

被引：33

作者：

Chatterjee, S. ^{[1
]}

Singh, V. R. ^{[1
]}

Deb, A. K. ^{[3
]}

Giri, S. ^{[1
]}

De, S. K. ^{[2
]}

Dasgupta, I. ^{[1
,4
]}

Majumdar, S. ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, India

[2] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, India

[3] Univ Coll, Raiganj Coll, Dept Phys, Raiganj 733134, India

[4] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2010年 / 322卷 / 01期

关键词：

Heusler alloy; Ferromagnetism; SHAPE-MEMORY ALLOYS; ELECTRONIC-STRUCTURE; PHASE-TRANSITIONS; NI2MNGA; MOMENTS; METALS;

D O I：

10.1016/j.jmmm.2009.08.040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties of the cubic Heusler alloys with nominal compositions Ni2-xMn1-xIn have been investigated experimentally as well as theoretically using first principles electronic structure calculations. Magnetization measurements indicate that all the alloys considered in this work have ferromagnetic ground state. The Curie temperature and the saturation moment of the samples are found to decrease systematically with increasing Ni concentration. No indication of structural transition was evident from our experimental data recorded down to 5 K. Electronic structure calculation indicates that localized magnetic moments are predominantly contributed by the Mn atoms and the calculated magnetic moment as a function of excess Ni concentration agrees well with the experimental data. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：102 / 107

页数：6

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