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First order magnetic transition in CeFe$_2$ alloys: Phase-coexistence and metastability

S. B. Roy·G. K. Perkins·M. K. Chattopadhyay·A. K. Nigam·K. J. S. Sokhey·P. Chaddah·A. D. Caplin·L. F. Cohen
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Abstract

First order ferromagnetic (FM) to antiferromagnetic (AFM) phase transition in doped-CeFe$_2$ alloys is studied with micro-Hall probe technique. Clear visual evidence of magnetic phase-coexistence on micrometer scales and the evolution of this phase-coexistence as a function of temperature, magnetic field and time across the first order FM-AFM transition is presented. Such phase-coexistence and metastability arise as natural consequence of an intrinsic disorder-influenced first order transition. Generality of this phenomena involving other classes of materials is discussed.

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S. B. Roy, G. K. Perkins, M. K. Chattopadhyay, A. K. Nigam, K. J. S. Sokhey, P. Chaddah, A. D. Caplin, L. F. Cohen. 2003-12-15. First order magnetic transition in CeFe$_2$ alloys: Phase-coexistence and metastability. https://doi.org/10.1103/physrevlett.92.147203

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