{ "id": "1912.04818", "version": "v1", "published": "2019-12-10T16:54:26.000Z", "updated": "2019-12-10T16:54:26.000Z", "title": "Many-particle effects in optical transitions from zero-mode Landau levels in HgTe quantum wells", "authors": [ "S. S. Krishtopenko", "A. M. Kadykov", "S. Gebert", "S. Ruffenach", "C. Consejo", "J. Torres", "C. Avogadri", "B. Jouault", "W. Knap", "N. N. Mikhailov", "S. A. Dvoretskii", "F. Teppe" ], "comment": "5 pages, 4 figures and supplemental materials", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "We report on the far-infrared magnetospectroscopy of HgTe quantum wells with inverted band ordering at different electron concentrations. We particularly focus on optical transitions from zero-mode Landau levels, which split from the edges of electron-like and hole-like bands. We observe a pronounced dependence of the transition energies on the electron concentration varied by persistent photoconductivity effect. This is striking evidence that in addition to the already well-documented crystalline and interface asymmetries, electron-electron interactions also have a significant impact on the usual behavior of the optical transitions from zero mode Landau levels.", "revisions": [ { "version": "v1", "updated": "2019-12-10T16:54:26.000Z" } ], "analyses": { "keywords": [ "zero-mode landau levels", "hgte quantum wells", "optical transitions", "many-particle effects", "electron concentration" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }