{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:SJTDL4SDL2Q2HIHNE4S4RBFBA2","short_pith_number":"pith:SJTDL4SD","schema_version":"1.0","canonical_sha256":"926635f2435ea1a3a0ed2725c884a106af9084d441b760ceb818c7ef356cff03","source":{"kind":"arxiv","id":"2009.05612","version":2},"attestation_state":"computed","paper":{"title":"Orbital susceptibility of T-graphene: Interplay of high-order van Hove singularities and Dirac cones","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"D. O. Oriekhov, V. M. Loktev, V. P. Gusynin","submitted_at":"2020-09-11T18:51:27Z","abstract_excerpt":"Square-octagon lattice underlies the description of a family of two-dimensional materials such as tetragraphene. In the present paper we show that the tight-binding model of square-octagon lattice contains both conventional and high-order van Hove points. In particular, the spectrum of the model contains flat lines along some directions composed of high-order saddle points. Their role is analyzed by calculating orbital susceptibility of electrons. We find that the presence of van Hove singularities of different kinds in the density of states leads to strong responses: paramagnetic for ordinary"},"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":"2009.05612","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-09-11T18:51:27Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"0848382d412efe5a2f808feeb3d1a3fe33b080c9345b2d865edd64dc6fdd52d0","abstract_canon_sha256":"9979d7623b97e7ba4118e543e35a049d3151d2aa47157f55c5dc14f1ded394b2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:39:42.172997Z","signature_b64":"LvcPGigLKVkY03URyRru2Tdnn9Y18yt7FK1heZggvdQHxZvEN4BbIvdpza6ADKLSy7M59MCdmrJ+sWNvXmyTDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"926635f2435ea1a3a0ed2725c884a106af9084d441b760ceb818c7ef356cff03","last_reissued_at":"2026-07-05T02:39:42.172544Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:39:42.172544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Orbital susceptibility of T-graphene: Interplay of high-order van Hove singularities and Dirac cones","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"D. O. Oriekhov, V. M. Loktev, V. P. Gusynin","submitted_at":"2020-09-11T18:51:27Z","abstract_excerpt":"Square-octagon lattice underlies the description of a family of two-dimensional materials such as tetragraphene. In the present paper we show that the tight-binding model of square-octagon lattice contains both conventional and high-order van Hove points. In particular, the spectrum of the model contains flat lines along some directions composed of high-order saddle points. Their role is analyzed by calculating orbital susceptibility of electrons. We find that the presence of van Hove singularities of different kinds in the density of states leads to strong responses: paramagnetic for ordinary"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.05612","kind":"arxiv","version":2},"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/2009.05612/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":"2009.05612","created_at":"2026-07-05T02:39:42.172608+00:00"},{"alias_kind":"arxiv_version","alias_value":"2009.05612v2","created_at":"2026-07-05T02:39:42.172608+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.05612","created_at":"2026-07-05T02:39:42.172608+00:00"},{"alias_kind":"pith_short_12","alias_value":"SJTDL4SDL2Q2","created_at":"2026-07-05T02:39:42.172608+00:00"},{"alias_kind":"pith_short_16","alias_value":"SJTDL4SDL2Q2HIHN","created_at":"2026-07-05T02:39:42.172608+00:00"},{"alias_kind":"pith_short_8","alias_value":"SJTDL4SD","created_at":"2026-07-05T02:39:42.172608+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/SJTDL4SDL2Q2HIHNE4S4RBFBA2","json":"https://pith.science/pith/SJTDL4SDL2Q2HIHNE4S4RBFBA2.json","graph_json":"https://pith.science/api/pith-number/SJTDL4SDL2Q2HIHNE4S4RBFBA2/graph.json","events_json":"https://pith.science/api/pith-number/SJTDL4SDL2Q2HIHNE4S4RBFBA2/events.json","paper":"https://pith.science/paper/SJTDL4SD"},"agent_actions":{"view_html":"https://pith.science/pith/SJTDL4SDL2Q2HIHNE4S4RBFBA2","download_json":"https://pith.science/pith/SJTDL4SDL2Q2HIHNE4S4RBFBA2.json","view_paper":"https://pith.science/paper/SJTDL4SD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2009.05612&json=true","fetch_graph":"https://pith.science/api/pith-number/SJTDL4SDL2Q2HIHNE4S4RBFBA2/graph.json","fetch_events":"https://pith.science/api/pith-number/SJTDL4SDL2Q2HIHNE4S4RBFBA2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SJTDL4SDL2Q2HIHNE4S4RBFBA2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SJTDL4SDL2Q2HIHNE4S4RBFBA2/action/storage_attestation","attest_author":"https://pith.science/pith/SJTDL4SDL2Q2HIHNE4S4RBFBA2/action/author_attestation","sign_citation":"https://pith.science/pith/SJTDL4SDL2Q2HIHNE4S4RBFBA2/action/citation_signature","submit_replication":"https://pith.science/pith/SJTDL4SDL2Q2HIHNE4S4RBFBA2/action/replication_record"}},"created_at":"2026-07-05T02:39:42.172608+00:00","updated_at":"2026-07-05T02:39:42.172608+00:00"}