Origin of the Orbital Ordering in Lamno 3 *

نویسندگان

  • Olga Sikora
  • Andrzej M. Oleś
چکیده

We use the temperature of the structural phase transition to determine the Jahn-Teller (JT) coupling constant in the model derived for LaMnO3 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. Journal ref.: O. Sikora and A. M. Oleś, Acta Phys. Pol. B 34, 861 (2003).

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تاریخ انتشار 2002