{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:34YVNJLD2T6776YYPRXZQN2F6Z","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":"518cec253d582eea4d70785e1369eadc105e0440f90a37c7adfd517439da5479","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-08-22T16:05:42Z","title_canon_sha256":"9c6846f64bb6abf7fc2de5990f6576bfecc4a5ec8a56e272f3137c32f2020532"},"schema_version":"1.0","source":{"id":"1608.06205","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.06205","created_at":"2026-05-18T00:53:59Z"},{"alias_kind":"arxiv_version","alias_value":"1608.06205v1","created_at":"2026-05-18T00:53:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.06205","created_at":"2026-05-18T00:53:59Z"},{"alias_kind":"pith_short_12","alias_value":"34YVNJLD2T67","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"34YVNJLD2T6776YY","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"34YVNJLD","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:91e699088d9acebde1613eacf3b410faa21092fb35e5cf4a4c3fcd224b2676cf","target":"graph","created_at":"2026-05-18T00:53:59Z","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 report the analysis of magnetic susceptibility $\\chi$($T$) of Sr$_2$IrO$_4$ single crystal in the paramagnetic phase. We formulate the theoretical susceptibility based on isotropic Heisenberg antiferromagnetism incorporating the Dzyaloshinsky-Moriya interaction exactly, and include the interlayer couplings in a mean-field approximation. $\\chi$($T$) above $T_{\\rm N}$ was found to be well described by the model, indicating the predominant Heisenberg exchange consistent with the microscopic theory. The analysis points to a competition of nearest and next-nearest neighbor interlayer couplings, ","authors_text":"Akiyo Matsumoto, George Jackeli, Hidenori Takagi, Tomohiro Takayama","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-08-22T16:05:42Z","title":"Model analysis of magnetic susceptibility of Sr$_2$IrO$_4$ - 2D $J_{\\rm eff}$ = 1/2 Heisenberg system with competing interlayer couplings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.06205","kind":"arxiv","version":1},"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:f449f8cd3b4c0cbf7fb925c3838616def7f5e6e511a51ab4b7df11fdde617194","target":"record","created_at":"2026-05-18T00:53:59Z","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":"518cec253d582eea4d70785e1369eadc105e0440f90a37c7adfd517439da5479","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-08-22T16:05:42Z","title_canon_sha256":"9c6846f64bb6abf7fc2de5990f6576bfecc4a5ec8a56e272f3137c32f2020532"},"schema_version":"1.0","source":{"id":"1608.06205","kind":"arxiv","version":1}},"canonical_sha256":"df3156a563d4fdfffb187c6f983745f66458f50f44f8c1a8fac5b25b75e98c53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"df3156a563d4fdfffb187c6f983745f66458f50f44f8c1a8fac5b25b75e98c53","first_computed_at":"2026-05-18T00:53:59.225473Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:59.225473Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BYN7EDj/gsWIr+3mvHxqcqC1qvAXTt4BeRIvodBb3D+YhE1opmgqR1gMYnepCoav7od8ZLiLnkzXPq64x1yODg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:59.225963Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.06205","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f449f8cd3b4c0cbf7fb925c3838616def7f5e6e511a51ab4b7df11fdde617194","sha256:91e699088d9acebde1613eacf3b410faa21092fb35e5cf4a4c3fcd224b2676cf"],"state_sha256":"faab2657256372caa0f73e4843bfe4ef9a91d406a5508cabf9fa6da9dd9db331"}