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Phase Separation Induced by Orbital Degrees of Freedom in Models for Manganites with Jahn-Teller Phonons

S. Yunoki·A. Moreo·E. Dagotto
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Abstract

The two-orbital Kondo model with classical Jahn-Teller phonons is studied using Monte Carlo techniques. The observed phase diagram is rich, and includes a novel regime of phase separation induced by the orbital degrees of freedom. Experimental consequences of our results are discussed. In addition, the optical conductivity $σ(ω)$ of the model is presented. It is shown to have several similarities with experimental measurements for manganites.

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S. Yunoki, A. Moreo, E. Dagotto. 1998-11-17. Phase Separation Induced by Orbital Degrees of Freedom in Models for Manganites with Jahn-Teller Phonons. https://doi.org/10.1103/physrevlett.81.5612

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