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A first order phase transition induced by magnetic field and temperature

K. J. Singh·S. Chaudhary·M. K. Chattopadhyay·M. A. Manekar·S. B. Roy·P. Chaddah
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Abstract

Taking the pseudobinary C15-Laves phase compound Ce(Fe$_{0.96}$Al$_{0.04}$)$_2$ 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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K. J. Singh, S. Chaudhary, M. K. Chattopadhyay, M. A. Manekar, S. B. Roy, P. Chaddah. 2001-02-12. A first order phase transition induced by magnetic field and temperature. https://arxiv.org/abs/cond-mat/0102199

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