Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10709875 | Journal of Magnetism and Magnetic Materials | 2011 | 4 Pages |
Abstract
⺠We have investigated the pressure variation of volume and structure of FCC Fe64Mn36 alloy. ⺠We discovered that the change in inclination of the pressure-volume (P-V) curve of the FCC structure becomes discontinuous at a pressure of 4 GPa. This pressure corresponds to the Neel temperature, which decreases down to room temperature. ⺠Further we estimated bulk modulus and volume at zero pressure using the Birch-Murnaghan equation of state. As a result, we have demonstrated that anti-ferromagnetism has very close relationship with the bulk modulus and lattice volume. Moreover we discuss relationship between pressure-induced structural transition from FCC to HCP and magnetism. ⺠Our research is demonstrated with magneto-volume coupling of anti-ferromagnetic Fe-based alloy.
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Authors
M. Matsushita, S. Nakano, H. Ohfuji, I. Yamada, T. Kikegawa,