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Hole spectral functions of LaMnO3

Wei-Guo Yin·Hai-Qing Lin·Chang-De Gong
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Abstract

By use of the orbital t-J model, we calculate the photoemission spectra of LaMnO3 using the exact diagonalization technique, and interpret our numerics quite well in the orbital-polaron scenario where the scattering between holes and orbital excitations is treated within the self-consistent Born approximation. The quasiparticle bandwidth is found to be of the order of J and t in the purely Coulombic and Jahn-Teller phononic model, respectively. We suggest that angle-resolved photoemission spectroscopy experiments allow one to distinguish between the orbital-polaron scenario and the Jahn-Teller polaron scenario.

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Wei-Guo Yin, Hai-Qing Lin, Chang-De Gong. 2000-12-02. Hole spectral functions of LaMnO3. https://doi.org/10.1016/s0921-4534(01)00727-4

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