Effect of compositional and antisite disorder on the electronic and magnetic properties of Ni-Mn-In Heusler alloy

被引：13

作者：

Borgohain, Parijat ^{[1
]}

Sahariah, Munima B. ^{[1
]}

机构：

[1] Inst Adv Study Sci & Technol, Gauhati 35, India

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2015年 / 27卷 / 17期

关键词：

electronic structure; Heusler alloy; exchange interaction; EXCHANGE INTERACTIONS; TRANSITION;

D O I：

10.1088/0953-8984/27/17/175502

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A systematic study has been done on the electronic and magnetic properties of metamagnetic Ni-Mn-In Heusler alloy with compositional and structural (anti-site) disorder at high temperature austenite phase. The electronic structure calculation shows an increasing Mn-Ni hybridization which occurs due to the decrease in Mn-Ni bond length as the system approaches martensite phase. The results obtained from magnetic moment calculations follow a similar trend to the previous experimental and theoretical results. The magnetic coupling parameters, J(ij), obtained from the ab initio calculation explains the presence of competing ferromagnetic (FM) and antiferromagnetic (AFM) interactions in the system and the dominating AFM interactions nearer to the martensite phase.

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页数：10

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