Critical behaviour in $La_{0.5}Sr_{0.5}CoO_3$

S. Mukherjee; P. Raychaudhuri; A. K. Nigam

paper

Critical behaviour in $L a_{0.5} S r_{0.5} C o O_{3}$

arXiv:cond-mat/9812433

Abstract

We have studied the critical behaviour in $L a_{0.5} S r_{0.5} C o O_{3}$ near the paramagnetic-ferromagnetic transition temperature. We have analysed our dc magnetisation data near the transition temperature with the help of modified Arrott plots, Kouvel-Fisher method. We have determined the critical temperature $T_{c}$ and the critical exponents, $β$ and $γ$ . With these values of $T_{c}$ , $β$ and $γ$ , we plot $M / (1 - T / T_{c})^{β}$ vs $H / (1 - T / T_{c})^{γ}$ . All the data collapse on one of the two curves. This suggests that the data below and above $T_{c}$ obeys scaling, following a single equation of state.

Text+12 Figures (Submitted to JPCM)

Critical behaviour in La0.5​Sr0.5​CoO3​

Abstract

Critical behaviour in $L a_{0.5} S r_{0.5} C o O_{3}$