Multi-scale simulations of metamagnetic martensite transition in NiCoMnIn

被引：5

作者：

Huang, H. B. ^{[1
]}

He, W. Q. ^{[1
]}

Cao, G. P. ^{[1
]}

Wang, J. J. ^{[1
]}

Liu, Z. H. ^{[1
]}

Ma, X. Q. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Phys, Beijing 100083, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 689卷

基金：

美国国家科学基金会;

关键词：

Phase field simulations; Metamagnetic transition; NiCoMnIn; Magnetostructural coupling; PHASE-FIELD MODEL; ALLOYS; ENERGY;

D O I：

10.1016/j.jallcom.2016.08.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A multi-scale theoretical model is performed to investigate magnetic field-induced metamagnetic martensite transition in NiCoMnIn alloys. First, the total energy is calculated to demonstrate antiferromagnetic-ferromagnetic transition from first principle calculation. Second, the transition temperature from antiferromagnetic to ferromagnetic can be tuned by the external magnetic field and hydrostatic pressure in thermodynamic calculation, which is consistent with experimental results. Third, phase field simulation found that martensite variant boundaries are superposed with the 90 degrees antiferromagnetic magnetic domain walls, revealing magneto-structural coupling between structural and magnetic domain structures. It is demonstrated that this multi-scale model is very effective for describing antiferromagnetic-ferromagnetic accompanied with martensite-austenite transitions with magnetostructural coupling. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：507 / 511

页数：5

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