{"paper":{"title":"Tunable 2D Electron- and 2D Hole States Observed at Fe/SrTiO$_3$ Interfaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"2), (2) Fakult\\\"at Physik, (3) Forschungszentrum J\\\"ulich GmbH, (4) Paul Scherrer Institute, (5) Institut f\\\"ur Theoretische Physik III, Fatima Alarab (4), Frank Lechermann (5), Germany, Germany), Lutz Baumgarten (3), Martina M\\\"uller (1) ((1) Fachbereich Physik, Paul Rosenberger (1, Peter Gr\\\"unberg Institut (PGI-6), Pia M. D\\\"uring (1), Ruhr-Universit\\\"at Bochum, Swiss Light Source, Switzerland, Technische Universit\\\"at Dortmund, Universit\\\"at Konstanz, Villingen PSI, Vladimir N. Strocov (4)","submitted_at":"2023-12-15T13:55:23Z","abstract_excerpt":"Oxide electronics provide the key concepts and materials for enhancing silicon-based semiconductor technologies with novel functionalities. However, a basic but key property of semiconductor devices still needs to be unveiled in its oxidic counterparts: the ability to set or even switch between two types of carriers - either negatively (n) charged electrons or positively (p) charged holes. Here, we provide direct evidence for individually emerging n- or p-type 2D band dispersions in STO-based heterostructures using resonant photoelectron spectroscopy. The key to tuning the carrier character is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.09798","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}