Barman, S R and Chakrabarti, Aparna and Singh, Sanjay and Banik, S and Bhardwaj, S and Paulose, P L and Chalke, B A and Panda, A K and Mitra, A and Awasthi, A M (2008) Theoretical prediction and experimental study of a ferromagnetic shape memory alloy: Ga2MnNi. Physical Review B (PRB), 78 (13). pp. 1-6.
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Abstract
We predict the existence of a ferromagnetic shape memory alloy Ga2MnNi using density-functional theory. The martensitic start temperature (TM) is found to be approximately proportional to the stabilization energy of the martensitic phase (Etot) for different shape memory alloys. Experimental studies performed to verify the theoretical results show that Ga2MnNi is ferromagnetic at room temperature and TM and TC 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.
| Item Type: | Article |
|---|---|
| Official URL/DOI: | http://10.1103/PhysRevB.78.134406 |
| Uncontrolled Keywords: | density functional theory, ferromagnetic materials, gallium alloys; manganese alloys; martensitic transformations; nickel alloys; paramagnetism; shape memory effects |
| Divisions: | Material Science and Technology |
| ID Code: | 264 |
| Deposited By: | INVALID USER |
| Deposited On: | 12 Nov 2009 14:03 |
| Last Modified: | 13 Dec 2011 16:20 |
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