{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:IQJKYCQ2CCEXTUZUN5KGH3FY6J","short_pith_number":"pith:IQJKYCQ2","schema_version":"1.0","canonical_sha256":"4412ac0a1a108979d3346f5463ecb8f271248db4b1229926bbc5c516f903c96b","source":{"kind":"arxiv","id":"cond-mat/0206356","version":4},"attestation_state":"computed","paper":{"title":"Quantum vs. Geometric Disorder in a Two-Dimensional Heisenberg Antiferromagnet","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.dis-nn","authors_text":"M. Greven, O. P. Vajk","submitted_at":"2002-06-18T23:50:19Z","abstract_excerpt":"We present a numerical study of the spin-1/2 bilayer Heisenberg antiferromagnet with random interlayer dimer dilution. From the temperature dependence of the uniform susceptibility and a scaling analysis of the spin correlation length we deduce the ground state phase diagram as a function of nonmagnetic impurity concentration p and bilayer coupling g. At the site percolation threshold, there exists a multicritical point at small but nonzero bilayer coupling g_m = 0.15(3). The magnetic properties of the single-layer material La_2Cu_{1-p}(Zn,Mg)_pO_4 near the percolation threshold appear to be c"},"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":"cond-mat/0206356","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2002-06-18T23:50:19Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"acfceef81fba185dfdb1725644b35be63c5e22b8e3741ddf5bc91a2a93c995d3","abstract_canon_sha256":"bbc65d312bf679876087bf6034918517f21a6edcef7db845db49ce328af9f269"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:32:30.393382Z","signature_b64":"vacvsep8JJSBYLWmtNhT3DiZ/kmgi+NjLNhEL5avfCEYqN/3zwwxzRcANvtfuePUHOZkxqeUPq46Xj0/wyyNBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4412ac0a1a108979d3346f5463ecb8f271248db4b1229926bbc5c516f903c96b","last_reissued_at":"2026-07-04T16:32:30.392949Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:32:30.392949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum vs. Geometric Disorder in a Two-Dimensional Heisenberg Antiferromagnet","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.dis-nn","authors_text":"M. Greven, O. P. Vajk","submitted_at":"2002-06-18T23:50:19Z","abstract_excerpt":"We present a numerical study of the spin-1/2 bilayer Heisenberg antiferromagnet with random interlayer dimer dilution. From the temperature dependence of the uniform susceptibility and a scaling analysis of the spin correlation length we deduce the ground state phase diagram as a function of nonmagnetic impurity concentration p and bilayer coupling g. At the site percolation threshold, there exists a multicritical point at small but nonzero bilayer coupling g_m = 0.15(3). The magnetic properties of the single-layer material La_2Cu_{1-p}(Zn,Mg)_pO_4 near the percolation threshold appear to be c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0206356","kind":"arxiv","version":4},"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/cond-mat/0206356/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":"cond-mat/0206356","created_at":"2026-07-04T16:32:30.393009+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0206356v4","created_at":"2026-07-04T16:32:30.393009+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0206356","created_at":"2026-07-04T16:32:30.393009+00:00"},{"alias_kind":"pith_short_12","alias_value":"IQJKYCQ2CCEX","created_at":"2026-07-04T16:32:30.393009+00:00"},{"alias_kind":"pith_short_16","alias_value":"IQJKYCQ2CCEXTUZU","created_at":"2026-07-04T16:32:30.393009+00:00"},{"alias_kind":"pith_short_8","alias_value":"IQJKYCQ2","created_at":"2026-07-04T16:32:30.393009+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/IQJKYCQ2CCEXTUZUN5KGH3FY6J","json":"https://pith.science/pith/IQJKYCQ2CCEXTUZUN5KGH3FY6J.json","graph_json":"https://pith.science/api/pith-number/IQJKYCQ2CCEXTUZUN5KGH3FY6J/graph.json","events_json":"https://pith.science/api/pith-number/IQJKYCQ2CCEXTUZUN5KGH3FY6J/events.json","paper":"https://pith.science/paper/IQJKYCQ2"},"agent_actions":{"view_html":"https://pith.science/pith/IQJKYCQ2CCEXTUZUN5KGH3FY6J","download_json":"https://pith.science/pith/IQJKYCQ2CCEXTUZUN5KGH3FY6J.json","view_paper":"https://pith.science/paper/IQJKYCQ2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0206356&json=true","fetch_graph":"https://pith.science/api/pith-number/IQJKYCQ2CCEXTUZUN5KGH3FY6J/graph.json","fetch_events":"https://pith.science/api/pith-number/IQJKYCQ2CCEXTUZUN5KGH3FY6J/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IQJKYCQ2CCEXTUZUN5KGH3FY6J/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IQJKYCQ2CCEXTUZUN5KGH3FY6J/action/storage_attestation","attest_author":"https://pith.science/pith/IQJKYCQ2CCEXTUZUN5KGH3FY6J/action/author_attestation","sign_citation":"https://pith.science/pith/IQJKYCQ2CCEXTUZUN5KGH3FY6J/action/citation_signature","submit_replication":"https://pith.science/pith/IQJKYCQ2CCEXTUZUN5KGH3FY6J/action/replication_record"}},"created_at":"2026-07-04T16:32:30.393009+00:00","updated_at":"2026-07-04T16:32:30.393009+00:00"}