Quasiparticle band structure and exciton
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M. Vračko; C.-M; Liegener; J. Ladik
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Article
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1990
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John Wiley and Sons
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English
⚖ 386 KB
## 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