{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:QPYUR73I64L6ABTYCDVRXS222P","short_pith_number":"pith:QPYUR73I","schema_version":"1.0","canonical_sha256":"83f148ff68f717e0067810eb1bcb5ad3ff147a692f4c4889ae32f2043f344405","source":{"kind":"arxiv","id":"1111.1914","version":1},"attestation_state":"computed","paper":{"title":"Response of acoustic phonons to charge and orbital order in the 50\\% doped bilayer manganite LaSr$_2$Mn$_2$O$_7$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"D. Reznik, F. Weber, H. Zheng, J. F. Mitchell, J.-P. Castellan, J. W. Lynn, R. Osborn, Songxue Chi, S. Rosenkranz, Y. Chen","submitted_at":"2011-11-08T14:10:58Z","abstract_excerpt":"We report an inelastic neutron scattering study of acoustic phonons in the charge and orbitally ordered bilayer manganite LaSr$_2$Mn$_2$O$_7$. For excitation energies less than $15\\,\\rm{meV}$, we observe an abrupt increase (decrease) of the phonon energies (linewidths) of a transverse acoustic phonon branch at $\\mathbf{q} = (h, h, 0)$, $h\\le0.3$, upon entering the low temperature charge and orbital ordered state ($T_{COO} = 225\\,\\rm{K}$). This indicates a reduced electron-phonon coupling due to a decrease of electronic states at the Fermi level leading to a partial removal of the Fermi surface"},"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":"1111.1914","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-11-08T14:10:58Z","cross_cats_sorted":[],"title_canon_sha256":"446dc1b03bc26cef641ba4924927a9d7149198071f49d245ff203e46e689d189","abstract_canon_sha256":"97c35d0a017dbc47052c1b3ca99e9a65224d69ea8543752dca29bce71c427c05"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:06:32.765559Z","signature_b64":"BFgOP7Is4ar4otm0GrFjevT4oKAfaeIK0nDw1+DkaqIEG84auOcpTp8xzNnyjJgv9u0UvrZT8ts/T6rszRxuDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"83f148ff68f717e0067810eb1bcb5ad3ff147a692f4c4889ae32f2043f344405","last_reissued_at":"2026-05-18T04:06:32.764887Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:06:32.764887Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Response of acoustic phonons to charge and orbital order in the 50\\% doped bilayer manganite LaSr$_2$Mn$_2$O$_7$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"D. Reznik, F. Weber, H. Zheng, J. F. Mitchell, J.-P. Castellan, J. W. Lynn, R. Osborn, Songxue Chi, S. Rosenkranz, Y. Chen","submitted_at":"2011-11-08T14:10:58Z","abstract_excerpt":"We report an inelastic neutron scattering study of acoustic phonons in the charge and orbitally ordered bilayer manganite LaSr$_2$Mn$_2$O$_7$. For excitation energies less than $15\\,\\rm{meV}$, we observe an abrupt increase (decrease) of the phonon energies (linewidths) of a transverse acoustic phonon branch at $\\mathbf{q} = (h, h, 0)$, $h\\le0.3$, upon entering the low temperature charge and orbital ordered state ($T_{COO} = 225\\,\\rm{K}$). This indicates a reduced electron-phonon coupling due to a decrease of electronic states at the Fermi level leading to a partial removal of the Fermi surface"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1914","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1111.1914","created_at":"2026-05-18T04:06:32.764986+00:00"},{"alias_kind":"arxiv_version","alias_value":"1111.1914v1","created_at":"2026-05-18T04:06:32.764986+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1914","created_at":"2026-05-18T04:06:32.764986+00:00"},{"alias_kind":"pith_short_12","alias_value":"QPYUR73I64L6","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_16","alias_value":"QPYUR73I64L6ABTY","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_8","alias_value":"QPYUR73I","created_at":"2026-05-18T12:26:39.201973+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/QPYUR73I64L6ABTYCDVRXS222P","json":"https://pith.science/pith/QPYUR73I64L6ABTYCDVRXS222P.json","graph_json":"https://pith.science/api/pith-number/QPYUR73I64L6ABTYCDVRXS222P/graph.json","events_json":"https://pith.science/api/pith-number/QPYUR73I64L6ABTYCDVRXS222P/events.json","paper":"https://pith.science/paper/QPYUR73I"},"agent_actions":{"view_html":"https://pith.science/pith/QPYUR73I64L6ABTYCDVRXS222P","download_json":"https://pith.science/pith/QPYUR73I64L6ABTYCDVRXS222P.json","view_paper":"https://pith.science/paper/QPYUR73I","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1111.1914&json=true","fetch_graph":"https://pith.science/api/pith-number/QPYUR73I64L6ABTYCDVRXS222P/graph.json","fetch_events":"https://pith.science/api/pith-number/QPYUR73I64L6ABTYCDVRXS222P/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QPYUR73I64L6ABTYCDVRXS222P/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QPYUR73I64L6ABTYCDVRXS222P/action/storage_attestation","attest_author":"https://pith.science/pith/QPYUR73I64L6ABTYCDVRXS222P/action/author_attestation","sign_citation":"https://pith.science/pith/QPYUR73I64L6ABTYCDVRXS222P/action/citation_signature","submit_replication":"https://pith.science/pith/QPYUR73I64L6ABTYCDVRXS222P/action/replication_record"}},"created_at":"2026-05-18T04:06:32.764986+00:00","updated_at":"2026-05-18T04:06:32.764986+00:00"}