{ "id": "1207.1294", "version": "v2", "published": "2012-07-05T16:10:27.000Z", "updated": "2012-12-12T17:37:25.000Z", "title": "Probing the Band Topology of Mercury Telluride through Weak Localization and Antilocalization", "authors": [ "Viktor Krueckl", "Klaus Richter" ], "comment": "7 pages, 6 figures, added references", "journal": "Semicond. Sci. Technol. 27, 124006 (2012)", "doi": "10.1088/0268-1242/27/12/124006", "categories": [ "cond-mat.mes-hall" ], "abstract": "We analyze the effect of weak localization (WL) and weak antilocalization (WAL) in the electronic transport through HgTe/CdTe quantum wells. We show that for increasing Fermi energy the magnetoconductance of a diffusive system with inverted band ordering features a transition from WL to WAL and back, if spin-orbit interactions from bulk and structure inversion asymmetry can be neglected. This, and an additional splitting in the magnetoconductance profile, is a signature of the Berry phase arising for inverted band ordering and not present in heterostructures with conventional ordering. In presence of spin-orbit interaction both band topologies exhibit WAL, which is distinctly energy dependent solely for quantum wells with inverted band ordering. This can be explained by an energy-dependent decomposition of the Hamiltonian into two blocks.", "revisions": [ { "version": "v2", "updated": "2012-12-12T17:37:25.000Z" } ], "analyses": { "keywords": [ "weak localization", "band topology", "mercury telluride", "antilocalization", "spin-orbit interaction" ], "tags": [ "journal article" ], "publication": { "journal": "Semiconductor Science Technology", "year": 2012, "month": "Dec", "volume": 27, "number": 12, "pages": 124006 }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012SeScT..27l4006K" } } }