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26 April 2024

» arxiv » cond-mat/0312352

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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 ;
Date:	15 Dec 2003
Subject:	Materials Science; Strongly Correlated Electrons \| cond-mat.mtrl-sci cond-mat.str-el
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.
Source:	arXiv, cond-mat/0312352
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