Theoretical prediction and experimental study of a ferromagnetic shape memory alloy: Ga2MnNi

被引：113

作者：

Barman, S. R. ^{[1
]}

Chakrabarti, Aparna ^{[2
]}

Singh, Sanjay ^{[1
]}

Banik, S. ^{[1
]}

Bhardwaj, S. ^{[1
]}

Paulose, P. L. ^{[3
]}

Chalke, B. A. ^{[3
]}

Panda, A. K. ^{[4
]}

Mitra, A. ^{[4
]}

Awasthi, A. M. ^{[1
]}

机构：

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

[2] Raja Ramanna Ctr Adv Technol, Indore 452013, India

[3] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[4] Natl Met Lab, Jamshedpur 831007, Bihar, India

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.78.134406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We predict the existence of a ferromagnetic shape memory alloy Ga2MnNi using density-functional theory. The martensitic start temperature (T-M) is found to be approximately proportional to the stabilization energy of the martensitic phase (delta E-tot) for different shape memory alloys. Experimental studies performed to verify the theoretical results show that Ga2MnNi is ferromagnetic at room temperature and T-M and T-C are 780 and 330 K, respectively. Both from theory and experiment, the martensitic transition is found to be volume conserving that is indicative of shape memory behavior.

引用

页数：6

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