{"paper":{"title":"Detection and imaging of the oxygen deficiency in single crystalline YBa$_{\\text{2}}$Cu$_{\\text{3}}$O$_{\\text{7}-\\delta}$ thin films using a positron beam","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Christoph Hugenschmidt, German Hammerl, Markus Reiner, Rainer Jany, Thomas Gigl","submitted_at":"2015-01-26T13:26:06Z","abstract_excerpt":"Single crystalline YBa$_{\\text{2}}$Cu$_{\\text{3}}$O$_{\\text{7}-\\delta}$ (YBCO) thin films were grown by pulsed laser deposition (PLD) in order to probe the oxygen deficiency $\\delta$ using a mono-energetic positron beam. The sample set covered a large range of $\\delta$ (0.191<$\\delta$<0.791) yielding a variation of the critical temperature $T_{\\text{c}}$ between 25 and 90\\,K. We found a linear correlation between the Doppler broadening of the positron electron annihilation line and $\\delta$ determined by X-ray diffraction (XRD). Both, the origin of the found correlation and the influence of me"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.06383","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"}