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Pressure-induced antiferromagnetism in fcc Fe-Ni Invar alloys

Author links open overlay panelM.M.Abd-ElmeguidB.SchleedeH.Micklitz
Institut für Experimentalphysik IV, Ruhr Universität Bochum, D-4630 Bochum, Fed. Rep. Germany
Received 30 November 1987, Available online 9 August 2002.

Abstract

We report the experimental observation of a pressure-induced magnetic phase transition in the ferromagnetic fcc Fe68.5Ni31.5 Invar alloy. It is shown that above a critical pressure of 5.8 GPa the system displays antiferromagnetic order at low temperatures. The Néel temperature decreases on further increasing the pressure. The experimental results are compared with several related theoretical models.

https://sci-hub.tw/https://www.sciencedirect.com/science/article/abs/pii/0304885388902193

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