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arXiv · 1509.04833

Structural and magnetic properties of a new and ordered quaternary alloy MnNiCuSb (SG: F-43m)

Zeba Haque·Gohil S. Thakur·Somnath Ghara·L. C. Gupta·A. Sundaresan·A. K. Ganguli
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Abstract

We have synthesized a new crystallographically ordered quaternary Heusler alloy, MnNiCuSb. The crystal structure of the alloy has been determined by Rietveld refinement of the powder x-ray diffraction data. This alloy crystallizes in the LiMgPdSb type structure with F-43m space group. MnNiCuSb is a ferromagnet with a high TC ~ 690K and magnetic moment of 3.85MuB/f.u. Besides this we have also studied two other off-stoichiometric compositions; one Cu rich and the other Ni rich (MnNi0.9Cu1.1Sb and MnNi1.1Cu0.9Sb) which are also ferromagnets. It must be stressed that MnNiCuSb is one of the very few known, non-Fe containing quaternary Heusler alloys with 1: 1: 1: 1 composition.

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Zeba Haque, Gohil S. Thakur, Somnath Ghara, L. C. Gupta, A. Sundaresan, A. K. Ganguli. 2015-09-16. Structural and magnetic properties of a new and ordered quaternary alloy MnNiCuSb (SG: F-43m). https://doi.org/10.1016/j.jmmm.2015.08.114

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