%0 Journal Article
%T A first order phase transition induced by magnetic field and temperature
%A K. J. Singh
%A S. Chaudhary
%A M. K. Chattopadhyay
%A M. A. Manekar
%A S. B. Roy
%A P. Chaddah
%J Physics
%D 2001
%I arXiv
%X 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.
%U http://arxiv.org/abs/cond-mat/0102199v1