{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:AEBTX2S3DJC3NKUDNUCN7SRMLO","short_pith_number":"pith:AEBTX2S3","schema_version":"1.0","canonical_sha256":"01033bea5b1a45b6aa836d04dfca2c5b9837f26fc2308dde1648f7abbfdf1bd3","source":{"kind":"arxiv","id":"2401.13886","version":1},"attestation_state":"computed","paper":{"title":"Observation of possible excitonic charge density waves and metal-insulator transitions in atomically thin semimetals","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Dawei Shen, Haiyang Chen, Kanjanaporn Tangprapha, Peng Chen, Pengfei Jiao, Qiang Gao, Shengwei Jiang, Shuaishuai Yin, Xiaolong Li, Yang-hao Chan, Yichen Yang, Zhengtai Liu","submitted_at":"2024-01-25T02:02:52Z","abstract_excerpt":"Charge density wave (CDW) is a collective quantum phenomenon with a charge modulation in solids1-2. Condensation of electron and hole pairs with finite momentum will lead to such an ordered state3-7. However, lattice symmetry breaking manifested as the softening of phonon modes can occur simultaneously, which makes it difficult to disentangle the origin of the transition8-14. Here, we report a condensed phase in low dimensional HfTe2, whereas angle-resolved photoemission spectroscopy (ARPES) measurements show a metal-insulator transition by lowering the temperature in single triatomic layer (T"},"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":"2401.13886","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-01-25T02:02:52Z","cross_cats_sorted":[],"title_canon_sha256":"32dd8b7dd909fa40cf98903698cb0fff1d92f2fb54bc6ea2aad64a5671e82797","abstract_canon_sha256":"b7c052c41b464f8fba9e3c15d491da4423b42e730524044724e22cca13f2e7b5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:37:19.241999Z","signature_b64":"dgpU7J/VzqUBbWDS75lOUJfSoJE/pLteqkviEacIS5tNtge271Qo81SsnikkGv9bSdI33HhpCi9ayrBJMdsZBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01033bea5b1a45b6aa836d04dfca2c5b9837f26fc2308dde1648f7abbfdf1bd3","last_reissued_at":"2026-07-05T07:37:19.241433Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:37:19.241433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observation of possible excitonic charge density waves and metal-insulator transitions in atomically thin semimetals","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Dawei Shen, Haiyang Chen, Kanjanaporn Tangprapha, Peng Chen, Pengfei Jiao, Qiang Gao, Shengwei Jiang, Shuaishuai Yin, Xiaolong Li, Yang-hao Chan, Yichen Yang, Zhengtai Liu","submitted_at":"2024-01-25T02:02:52Z","abstract_excerpt":"Charge density wave (CDW) is a collective quantum phenomenon with a charge modulation in solids1-2. Condensation of electron and hole pairs with finite momentum will lead to such an ordered state3-7. However, lattice symmetry breaking manifested as the softening of phonon modes can occur simultaneously, which makes it difficult to disentangle the origin of the transition8-14. Here, we report a condensed phase in low dimensional HfTe2, whereas angle-resolved photoemission spectroscopy (ARPES) measurements show a metal-insulator transition by lowering the temperature in single triatomic layer (T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.13886","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2401.13886/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":"2401.13886","created_at":"2026-07-05T07:37:19.241495+00:00"},{"alias_kind":"arxiv_version","alias_value":"2401.13886v1","created_at":"2026-07-05T07:37:19.241495+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.13886","created_at":"2026-07-05T07:37:19.241495+00:00"},{"alias_kind":"pith_short_12","alias_value":"AEBTX2S3DJC3","created_at":"2026-07-05T07:37:19.241495+00:00"},{"alias_kind":"pith_short_16","alias_value":"AEBTX2S3DJC3NKUD","created_at":"2026-07-05T07:37:19.241495+00:00"},{"alias_kind":"pith_short_8","alias_value":"AEBTX2S3","created_at":"2026-07-05T07:37:19.241495+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/AEBTX2S3DJC3NKUDNUCN7SRMLO","json":"https://pith.science/pith/AEBTX2S3DJC3NKUDNUCN7SRMLO.json","graph_json":"https://pith.science/api/pith-number/AEBTX2S3DJC3NKUDNUCN7SRMLO/graph.json","events_json":"https://pith.science/api/pith-number/AEBTX2S3DJC3NKUDNUCN7SRMLO/events.json","paper":"https://pith.science/paper/AEBTX2S3"},"agent_actions":{"view_html":"https://pith.science/pith/AEBTX2S3DJC3NKUDNUCN7SRMLO","download_json":"https://pith.science/pith/AEBTX2S3DJC3NKUDNUCN7SRMLO.json","view_paper":"https://pith.science/paper/AEBTX2S3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2401.13886&json=true","fetch_graph":"https://pith.science/api/pith-number/AEBTX2S3DJC3NKUDNUCN7SRMLO/graph.json","fetch_events":"https://pith.science/api/pith-number/AEBTX2S3DJC3NKUDNUCN7SRMLO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AEBTX2S3DJC3NKUDNUCN7SRMLO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AEBTX2S3DJC3NKUDNUCN7SRMLO/action/storage_attestation","attest_author":"https://pith.science/pith/AEBTX2S3DJC3NKUDNUCN7SRMLO/action/author_attestation","sign_citation":"https://pith.science/pith/AEBTX2S3DJC3NKUDNUCN7SRMLO/action/citation_signature","submit_replication":"https://pith.science/pith/AEBTX2S3DJC3NKUDNUCN7SRMLO/action/replication_record"}},"created_at":"2026-07-05T07:37:19.241495+00:00","updated_at":"2026-07-05T07:37:19.241495+00:00"}