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Co2PtGa: A promising magnetic shape memory alloy with high martensite transition temperature

2017/12/13 by Tufan Roy, P. Devi, Roy, Tufan +9
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Shape Memory Alloy Transformations #cond-mat.mtrl-sci

paper · pdf · doi:10.48550/arxiv.1712.04765

We need to reproduce some of the results

openalex publication_date 2017/12/13 · arxiv created 2017/12/21 · arxiv updated 2017/12/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In the present work, a combined theoretical and experimental study on Co2PtGa Heusler alloy shows that it exhibits a martensite transition around 1320 K with a small thermal hysteresis (10 K). Dynamical stability of Co2PtGa in the tetragonal phase has been established by the theoretically calculated phonon dispersion curves. Magnetization measurements suggest that this alloy is a ferromagnetic material with a saturation magnetic moment of 2.83 μB/f.u. at 2 K, which is in excellent agreement with the value obtained from ab-initio calculations (2.87 μB/f.u.). Our present study demonstrates that Co2PtGa is a promising material for high temperature magnetic shape memory application.

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