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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
; | Date: |
12 Feb 2001 | Subject: | Strongly Correlated Electrons; Materials Science | cond-mat.str-el cond-mat.mtrl-sci | 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. | Source: | arXiv, cond-mat/0102199 | Services: | Forum | Review | PDF | Favorites |
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