{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IMHQTGBIGX6TJPVOCIXWXTH7S2","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c6af32f774bae434f12f912ca6b3cba3d48da3c89d8e0d8d9ed3312858814b42","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-27T15:02:46Z","title_canon_sha256":"8a859419b455f792c993229d420a34a767cebb662b8d5289cb1627ffcc31ce4d"},"schema_version":"1.0","source":{"id":"1806.10519","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.10519","created_at":"2026-05-18T00:04:22Z"},{"alias_kind":"arxiv_version","alias_value":"1806.10519v2","created_at":"2026-05-18T00:04:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.10519","created_at":"2026-05-18T00:04:22Z"},{"alias_kind":"pith_short_12","alias_value":"IMHQTGBIGX6T","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IMHQTGBIGX6TJPVO","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IMHQTGBI","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:d4116e87cc9aefc5767fdfb76644977293bb809525bd951d39a7145763b55ba6","target":"graph","created_at":"2026-05-18T00:04:22Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We used x-ray absorption spectroscopy to study the orbital symmetry and the energy band splitting of (111) LaAlO${_3}$/SrTiO${_3}$ and LaAlO${_3}$/EuTiO${_3}$/SrTiO${_3}$ heterostructures, hosting a quasi two-dimensional electron system (q2DES), and of a Ti-terminated (111) SrTiO${_3}$ single crystal, also known to form a q2DES at its surface. We demonstrate that the bulk tetragonal Ti-3d D${_4}$${_h}$ crystal field is turned into trigonal D${_3}$${_d}$ crystal field in all cases. The symmetry adapted a${_1}$${_g}$ and e${^\\pi_g}$ orbitals are non-degenerate in energy and their splitting, \\Del","authors_text":"A. Sambri, C. Piamonteze, D. Betto, E. Di Gennaro, F. Miletto Granozio, G. Ghiringhelli, G. M. De Luca, M. Salluzzo, N.B. Brookes, R. Di Capua","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-27T15:02:46Z","title":"Symmetry breaking at the (111) interfaces of SrTiO${_3}$ hosting a 2D-electron system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.10519","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:92465d1640cab139c263201d6f5bcddb0847d45dedc16ce71148579412c13a5b","target":"record","created_at":"2026-05-18T00:04:22Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"c6af32f774bae434f12f912ca6b3cba3d48da3c89d8e0d8d9ed3312858814b42","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-27T15:02:46Z","title_canon_sha256":"8a859419b455f792c993229d420a34a767cebb662b8d5289cb1627ffcc31ce4d"},"schema_version":"1.0","source":{"id":"1806.10519","kind":"arxiv","version":2}},"canonical_sha256":"430f09982835fd34beae122f6bccff968ab2fb51d77559a93601d5e4d87a3018","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"430f09982835fd34beae122f6bccff968ab2fb51d77559a93601d5e4d87a3018","first_computed_at":"2026-05-18T00:04:22.743202Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:22.743202Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lenQioy434rGO1EKEv0aHVrSczbWeCGCRUrlOEDdmI6o8ntbhx1fSlBLlZ6fjH5iD9+Ucbq5iR59b0ggn2VIDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:22.743950Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.10519","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92465d1640cab139c263201d6f5bcddb0847d45dedc16ce71148579412c13a5b","sha256:d4116e87cc9aefc5767fdfb76644977293bb809525bd951d39a7145763b55ba6"],"state_sha256":"2dd5c41f0aea0c0737752f790db1c4b14ddd544598cd7f465e3aef16374e915e"}