Fragile versus stable two-dimensional fermionic quasiparticles
نویسندگان
چکیده
The authors provide a comprehensive theoretical investigation of the validity Fermi-liquid quasiparticle description in two-dimensional electron gas interacting via long-range Coulomb interaction. Contrary to popular belief, they find that quasiparticles are robust far above Fermi momentum, perhaps providing clue as why energy-band works well from surface. also there exists small region around critical wave vector where become fragile due their coupling collective modes. They three-dimensional results.
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2021
ISSN: ['1098-0121', '1550-235X', '1538-4489']
DOI: https://doi.org/10.1103/physrevb.104.125118