Anomalous Exciton Hall Effect
نویسندگان
چکیده
It is well known that electrically neutral excitons can still be affected by crossed electric and magnetic fields make them move in a direction perpendicular to both fields. We show similar effect appears the absence of external fields, case scattering an exciton flow charged impurities presence field. As result, changes its propagation may described terms Hall conductivity for excitons. develop theory this effect, which we refer as anomalous distinguish it from arises due valley selective transport transition metal dichalcogenides. According our estimations, relatively weak optically active or bright conventional GaAs quantum wells, but becomes significant inactive dark excitons, because difference lifetimes. This makes proposed convenient tool spatial separation
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2021
ISSN: ['1079-7114', '0031-9007', '1092-0145']
DOI: https://doi.org/10.1103/physrevlett.126.036801