Phase equilibrium in two orbital model under magnetic field

Details Phase equilibrium in two orbital model under magnetic field Phase equilibrium in two orbital model under magnetic field

2006-01-09

arxiv.org/abs/cond-mat/0601166v1

J.Phys.: Condens Matter 18 (2006) L171-L177

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1088/0953-8984/18/15/L02

The phase equilibrium in manganites under magnetic field is studied using a two orbital model, based on the equivalent chemical potential principle for the competitive phases. We focus on the magnetic field induced melting process of CE phase in half-doped manganites. It is predicted that the homogenous CE phase begins to decompose into coexisting ferromagnetic phase and CE phase once the magnetic field exceeds the threshold field. In a more quantitative way, the volume fractions of the two competitive phases in the phase separation regime are evaluated.

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