{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:3SU575KP6FAHPDC6PIEV7RHY7J","short_pith_number":"pith:3SU575KP","schema_version":"1.0","canonical_sha256":"dca9dff54ff140778c5e7a095fc4f8fa5fa8e98cb9f9faaf1bf4a7d3cbea8d44","source":{"kind":"arxiv","id":"1907.12200","version":1},"attestation_state":"computed","paper":{"title":"Does the boson peak survive in an ultrathin oxide glass?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.dis-nn"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D. L. Cortie, D. R. G. Mitchell, D. Yu, G. N. Iles, J. H. Cole, J. S. Smith, M. J. Cyster, N. de Souza, R. A. Mole, X. L. Wang","submitted_at":"2019-07-29T03:44:20Z","abstract_excerpt":"Bulk glasses exhibit extra vibrational modes at low energies, known as the boson peak. The microscopic dynamics in nanoscale alumina impact the performance of qubits and other superconducting devices, however the existence of the boson peak in these glasses has not been previously measured. Here we report neutron spectroscopy on Al/Al$_2$O$_{3-x}$ nanoparticles consisting of spherical metallic cores from 20 to 1000 nm surrounded by a 3.5 nm thick alumina glass. An intense low-energy peak is observed at $\\omega_{BP}$ = 2.8 $\\pm$ 0.6 meV for highly oxidised particles, concurrent with an excess i"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1907.12200","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-07-29T03:44:20Z","cross_cats_sorted":["cond-mat.dis-nn"],"title_canon_sha256":"fef5909b621eb3bcaba395e75b3d1465232661751732e1191eb5adf2df3bf8a9","abstract_canon_sha256":"848821a5c669c2772337b354985e5b27486058ca51642bafb0083aa24ca65c57"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:15:06.153741Z","signature_b64":"1U9XUE2QKjFEJ6CytHQTKFw3Qu6AVFPNMVg9STJZEva8zSBGsMIRL+NrJuzurEJ9KUvm2C0Zk1Wjgq1zHFBOBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dca9dff54ff140778c5e7a095fc4f8fa5fa8e98cb9f9faaf1bf4a7d3cbea8d44","last_reissued_at":"2026-07-05T01:15:06.153305Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:15:06.153305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Does the boson peak survive in an ultrathin oxide glass?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.dis-nn"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D. L. Cortie, D. R. G. Mitchell, D. Yu, G. N. Iles, J. H. Cole, J. S. Smith, M. J. Cyster, N. de Souza, R. A. Mole, X. L. Wang","submitted_at":"2019-07-29T03:44:20Z","abstract_excerpt":"Bulk glasses exhibit extra vibrational modes at low energies, known as the boson peak. The microscopic dynamics in nanoscale alumina impact the performance of qubits and other superconducting devices, however the existence of the boson peak in these glasses has not been previously measured. Here we report neutron spectroscopy on Al/Al$_2$O$_{3-x}$ nanoparticles consisting of spherical metallic cores from 20 to 1000 nm surrounded by a 3.5 nm thick alumina glass. An intense low-energy peak is observed at $\\omega_{BP}$ = 2.8 $\\pm$ 0.6 meV for highly oxidised particles, concurrent with an excess i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.12200","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/1907.12200/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1907.12200","created_at":"2026-07-05T01:15:06.153376+00:00"},{"alias_kind":"arxiv_version","alias_value":"1907.12200v1","created_at":"2026-07-05T01:15:06.153376+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.12200","created_at":"2026-07-05T01:15:06.153376+00:00"},{"alias_kind":"pith_short_12","alias_value":"3SU575KP6FAH","created_at":"2026-07-05T01:15:06.153376+00:00"},{"alias_kind":"pith_short_16","alias_value":"3SU575KP6FAHPDC6","created_at":"2026-07-05T01:15:06.153376+00:00"},{"alias_kind":"pith_short_8","alias_value":"3SU575KP","created_at":"2026-07-05T01:15:06.153376+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J","json":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J.json","graph_json":"https://pith.science/api/pith-number/3SU575KP6FAHPDC6PIEV7RHY7J/graph.json","events_json":"https://pith.science/api/pith-number/3SU575KP6FAHPDC6PIEV7RHY7J/events.json","paper":"https://pith.science/paper/3SU575KP"},"agent_actions":{"view_html":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J","download_json":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J.json","view_paper":"https://pith.science/paper/3SU575KP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1907.12200&json=true","fetch_graph":"https://pith.science/api/pith-number/3SU575KP6FAHPDC6PIEV7RHY7J/graph.json","fetch_events":"https://pith.science/api/pith-number/3SU575KP6FAHPDC6PIEV7RHY7J/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J/action/storage_attestation","attest_author":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J/action/author_attestation","sign_citation":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J/action/citation_signature","submit_replication":"https://pith.science/pith/3SU575KP6FAHPDC6PIEV7RHY7J/action/replication_record"}},"created_at":"2026-07-05T01:15:06.153376+00:00","updated_at":"2026-07-05T01:15:06.153376+00:00"}