{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:27NRS6RTY5MTDGKAIVNW556FQX","short_pith_number":"pith:27NRS6RT","schema_version":"1.0","canonical_sha256":"d7db197a33c759319940455b6ef7c585f2ead63d7bc4fbd7e2b2c67b75e7b0d9","source":{"kind":"arxiv","id":"1812.10155","version":1},"attestation_state":"computed","paper":{"title":"Thermodynamics and spin mapping of quantum excitations in a Heisenberg spin heptamer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.other"],"primary_cat":"cond-mat.str-el","authors_text":"A. Roxburgh, J. T. Haraldsen","submitted_at":"2018-12-25T19:10:16Z","abstract_excerpt":"In this study, we examine the thermodynamics and spin dynamics of spin-1/2 and spin-3/2 heptamers. Through an exact diagonalization of the isotropic Heisenberg Hamiltonian, we find the closed-form, analytical representations for thermodynamic properties, spin excitations, and neutron scattering structure factors. Furthermore, we investigate the {cluster-like excitations of quantum spin heptamer} in the three-dimensional pyrochlore lattice material MgCr$_2$O$_4$. Using a spin mapping of the spin-1/2 heptamer excitations, the calculated structure factors of the spin-3/2 heptamer are be determine"},"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":"1812.10155","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-12-25T19:10:16Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.other"],"title_canon_sha256":"2cfa5fa9f75fc57c65b15de4bfab01d0f34e87c2d022d686663f9b7e03f2ac9e","abstract_canon_sha256":"b2ef8ba96e94262063b35a153eb2836a767e82493309298a34abdc6918ad6d2e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:10.409847Z","signature_b64":"nMczTwUvyKyC2/FttHgWBxSYqjN6lgFqHlJkWuCtG/vQZVuYurYftNZgdH4jiW+tCIHVCvTMdIj+toRXf+BSAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7db197a33c759319940455b6ef7c585f2ead63d7bc4fbd7e2b2c67b75e7b0d9","last_reissued_at":"2026-05-17T23:55:10.409485Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:10.409485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Thermodynamics and spin mapping of quantum excitations in a Heisenberg spin heptamer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.other"],"primary_cat":"cond-mat.str-el","authors_text":"A. Roxburgh, J. T. Haraldsen","submitted_at":"2018-12-25T19:10:16Z","abstract_excerpt":"In this study, we examine the thermodynamics and spin dynamics of spin-1/2 and spin-3/2 heptamers. Through an exact diagonalization of the isotropic Heisenberg Hamiltonian, we find the closed-form, analytical representations for thermodynamic properties, spin excitations, and neutron scattering structure factors. Furthermore, we investigate the {cluster-like excitations of quantum spin heptamer} in the three-dimensional pyrochlore lattice material MgCr$_2$O$_4$. Using a spin mapping of the spin-1/2 heptamer excitations, the calculated structure factors of the spin-3/2 heptamer are be determine"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.10155","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":"1812.10155","created_at":"2026-05-17T23:55:10.409551+00:00"},{"alias_kind":"arxiv_version","alias_value":"1812.10155v1","created_at":"2026-05-17T23:55:10.409551+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.10155","created_at":"2026-05-17T23:55:10.409551+00:00"},{"alias_kind":"pith_short_12","alias_value":"27NRS6RTY5MT","created_at":"2026-05-18T12:31:59.375834+00:00"},{"alias_kind":"pith_short_16","alias_value":"27NRS6RTY5MTDGKA","created_at":"2026-05-18T12:31:59.375834+00:00"},{"alias_kind":"pith_short_8","alias_value":"27NRS6RT","created_at":"2026-05-18T12:31:59.375834+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/27NRS6RTY5MTDGKAIVNW556FQX","json":"https://pith.science/pith/27NRS6RTY5MTDGKAIVNW556FQX.json","graph_json":"https://pith.science/api/pith-number/27NRS6RTY5MTDGKAIVNW556FQX/graph.json","events_json":"https://pith.science/api/pith-number/27NRS6RTY5MTDGKAIVNW556FQX/events.json","paper":"https://pith.science/paper/27NRS6RT"},"agent_actions":{"view_html":"https://pith.science/pith/27NRS6RTY5MTDGKAIVNW556FQX","download_json":"https://pith.science/pith/27NRS6RTY5MTDGKAIVNW556FQX.json","view_paper":"https://pith.science/paper/27NRS6RT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1812.10155&json=true","fetch_graph":"https://pith.science/api/pith-number/27NRS6RTY5MTDGKAIVNW556FQX/graph.json","fetch_events":"https://pith.science/api/pith-number/27NRS6RTY5MTDGKAIVNW556FQX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/27NRS6RTY5MTDGKAIVNW556FQX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/27NRS6RTY5MTDGKAIVNW556FQX/action/storage_attestation","attest_author":"https://pith.science/pith/27NRS6RTY5MTDGKAIVNW556FQX/action/author_attestation","sign_citation":"https://pith.science/pith/27NRS6RTY5MTDGKAIVNW556FQX/action/citation_signature","submit_replication":"https://pith.science/pith/27NRS6RTY5MTDGKAIVNW556FQX/action/replication_record"}},"created_at":"2026-05-17T23:55:10.409551+00:00","updated_at":"2026-05-17T23:55:10.409551+00:00"}