In a three-orbital model of bilayer nickelate, nonlocal correlations produce spin-polaron shadow bands below the Fermi level when the gamma quasiparticle band crosses it, depending on interorbital interaction strength.
Electronic structures and multi- orbital models of La 3Ni2O7 thin films at ambient pres- sure
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Co-operating multiorbital and nonlocal correlations in bilayer nickelate
In a three-orbital model of bilayer nickelate, nonlocal correlations produce spin-polaron shadow bands below the Fermi level when the gamma quasiparticle band crosses it, depending on interorbital interaction strength.