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

A first order phase transition induced by magnetic field and temperature

Strongly Correlated Electrons 2007-05-23 v1 Materials Science

Authors: K. J. Singh , S. Chaudhary , M. K. Chattopadhyay , M. A. Manekar , S. B. Roy , P. Chaddah

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.

Keywords

magnetic phase transitions magnetic structure iron-based superconductor

Cite

@article{arxiv.cond-mat/0102199,
  title  = {A first order phase transition induced by magnetic field and temperature},
  author = {K. J. Singh and S. Chaudhary and M. K. Chattopadhyay and M. A. Manekar and S. B. Roy and P. Chaddah},
  journal= {arXiv preprint arXiv:cond-mat/0102199},
  year   = {2007}
}

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10 pages and 2 figures

A first order phase transition induced by magnetic field and temperature

Abstract

Keywords

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