Theoretical prediction of the spin glass behavior in the low-temperature phase of Ni2Mn1.36In0.64 Heusler alloy

被引：1
作者：
Sokolovskiy, Vladimir [1 ,2 ]
Buchelnikov, Vasiliy [1 ]
Entel, Peter [3 ]
机构：
[1] Chelyabinsk State Univ, Chelyabinsk 454001, Russia
[2] MIS&S, Natl Univ Sci & Technol, Moscow 119049, Russia
[3] Univ Duisburg Essen, D-47048 Duisburg, Germany
来源：
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 11, NO 5-6 | 2014年 / 11卷 / 5-6期
关键词：
Heusler alloys; magnetic phase transitions; Monte Carlo method; SHAPE-MEMORY ALLOYS; MAGNETIC-PROPERTIES; EXCHANGE BIAS; TRANSFORMATIONS; SN;
D O I：
10.1002/pssc.201300710
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetization behavior in the Ni2Mn1.36In0.64 Heusler compound has been investigated using the 3-6 states Potts Hamiltonian with real unit cell and magnetic exchange couplings calculated from first principles. The random quenched exchange couplings between magnetic atoms located at different coordination shells have been considered. It is found that the spin-glass behavior is occurred in low-temperature range when the long-range magnetic interactions have been account in the third and more coordination shells. The critical temperature of first magnetic transition from a frustrated spin-glass-like phase to ordered ferromagnetic one at heating can be predicted by the Monte Carlo simulations using derived exchange constants. This transition has accompanied with a drop of magnetization. The second magnetic transition from ferromagnetic phase to paramagnetic one has appeared with further increasing of temperature. (C) 201 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1110 / 1115
页数：6
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