A first order phase transition induced by magnetic field and temperature

2001/02/12 by K. J. Singh, Singh, K. J., S. Chaudhary +9
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.mtrl-sci #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.cond-mat/0102199

10 pages and 2 figures

arxiv created 2001/02/12 · arxiv updated 2009/11/30

Abstract

Taking the pseudobinary C15-Laves phase compound Ce(Fe_0.96Al_0.04)₂ as a paradigm for studying a ferromagnetic(FM) to antiferromagnetic(AFM) phase transition, we present interesting thermomagnetic history effects in magnetotransport measurements across this FM-AFM transition. We argue that these distinctive hysteretic features can be used to identify the exact nature -first order or second order - of this kind of transition in magnetic systems where electrical transport is strongly correlated with the underlying magnetic order. A comparison is made with the similar FM-AFM transitions observed in Nd and Pr-based manganese compounds with perovskite-type structure.

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