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Quaternary half-metallic Heusler ferromagnets for spintronics applications

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Citation

Alijani, V., Winterlik, J., Fecher, G. H., Naghavi, S. S., & Felser, C. (2011). Quaternary half-metallic Heusler ferromagnets for spintronics applications. Physical Review B, 83(18): 184428, pp. 1-7. doi:10.1103/PhysRevB.83.184428.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0018-B8FE-4
Abstract
This work reports on three quaternary Heusler compounds NiFeMnGa, NiCoMnGa, and CuCoMnGa. In contrast to their ternary relatives, quaternary Heusler compounds are still rarely investigated. A very large pool of interesting materials lies thus idle waiting for exploration. The difficulty consists in choosing prospective compositions, and trial and error is elaborate and expensive. We have identified several candidates employing ab initioelectronic-structure calculations. The compounds were synthesized, and the structural and magnetic properties were investigated experimentally. CuCoMnGa is a quaternary Heusler compound; NiFeMnGa and NiCoMnGa are unreported half-metallic ferromagnetic materials with potential for spintronics applications.