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- W1987017813 abstract "Many-body perturbation theory up to second-order in the Møller-Plesset partitioning has been used to calculate the quasiparticle band structure of hexagonal boron nitride, treated as a periodic two-dimensional system. It was found that correlation leads to an essential narrowing of the fundamental gap. The exciton spectrum has been calculated using the first order irreducible vertex part with Hartree-Fock and quasiparticle band structure data. It was found that the exciton binding energy amounts to about 10% of the fundamental gap (for the first singlet excitation)." @default.
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- W1987017813 date "1990-03-01" @default.
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- W1987017813 title "Quasiparticle band structure and exciton spectrum of hexagonal boron nitride using second-order Møller-Plesset many-body perturbation theory" @default.
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- W1987017813 doi "https://doi.org/10.1002/qua.560370304" @default.
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