Origin of the Orbital Ordering in LaMnO$_3$

Details Origin of the Orbital Ordering in LaMnO$_3$ Origin of the Orbital Ordering in LaMnO$_3$

2003-03-12

arxiv.org/abs/cond-mat/0303232v1

Acta Phys. Pol. B 34, 861 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures

Scientific paper

We use the temperature of the structural phase transition to determine the
Jahn-Teller (JT) coupling constant in the model derived for LaMnO$_3$ which
includes both the superexchange between S=2 spins and the JT effect. We also
investigate the dependence of the exchange constants on the value of the
on-site Coulomb element $U$, and on the orbital ordering.

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