{"paper":{"title":"$\\gamma$-phase Inclusions as Common Defects in Alloyed $\\beta$-(Al$_x$Ga$_{1\\text{-}x}$)$_2$O$_3$ and Doped $\\beta$-Ga$_2$O$_3$ Films","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Celesta S. Chang, David A. Muller, Debdeep Jena, Huili Grace Xing, Nicholas Tanen, Shin Mou, Thaddeus J. Asel, Vladimir Protasenko","submitted_at":"2020-12-01T04:54:32Z","abstract_excerpt":"$\\beta$-Ga$_2$O$_3$ is a promising ultra-wide bandgap semiconductor whose properties can be further enhanced by alloying with Al. Here, using atomic-resolution scanning transmission electron microscopy (STEM), we find the thermodynamically-unstable $\\gamma$-phase is a ubiquitous defect in both $\\beta$-(Al$_x$Ga$_{1\\text{-}x}$)$_2$O$_3$ films and doped $\\beta$-Ga$_2$O$_3$ films grown by molecular beam epitaxy. For undoped $\\beta$-(Al$_x$Ga$_{1\\text{-}x}$)$_2$O$_3$ films we observe $\\gamma$-phase inclusions between nucleating islands of the $\\beta$-phase at lower growth temperatures (~400-600 $^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.00263","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2012.00263/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}