{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:2EMXDBIHOLALRRHF2LJAT4T3CT","short_pith_number":"pith:2EMXDBIH","schema_version":"1.0","canonical_sha256":"d11971850772c0b8c4e5d2d209f27b14ccf268d5be5d23d0fc1e9fccdcab4408","source":{"kind":"arxiv","id":"1911.02450","version":3},"attestation_state":"computed","paper":{"title":"Ab initio phonon self-energies and fluctuation diagnostics of phonon anomalies: Lattice instabilities from Dirac pseudospin physics in transition metal dichalcogenides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Arne Schobert, Erik G. C. P. van Loon, Jan Berges, Malte R\\\"osner, Tim O. Wehling","submitted_at":"2019-11-06T15:58:32Z","abstract_excerpt":"We present an ab initio approach for the calculation of phonon self-energies and their fluctuation diagnostics, which allows us to identify the electronic processes behind phonon anomalies. Application to the transition-metal-dichalcogenide monolayer 1H-TaS$_2$ reveals that coupling between the longitudinal-acoustic phonons and the electrons from an isolated low-energy metallic band is entirely responsible for phonon anomalies such as the mode softening and associated charge-density waves observed in this material. Our analysis allows us to distinguish between different mode-softening mechanis"},"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":"1911.02450","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-11-06T15:58:32Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"title_canon_sha256":"70389344ba116d4c2a197355797d014c6a12d1d65bf8a0dd1f1fd841ddda10cc","abstract_canon_sha256":"b4ab554fe8378476226780f278da4b5a534730c1ddaccec5e9b0baf6b0923d98"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:28:34.040850Z","signature_b64":"fETvW6BUuUu7gH036XttcKtc6HnUgfEZktVJoDj49xEomiZnPdoQRiSKgyqAo3d2vA0wud2jxTVUIGQPnjVyDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d11971850772c0b8c4e5d2d209f27b14ccf268d5be5d23d0fc1e9fccdcab4408","last_reissued_at":"2026-07-05T03:28:34.040415Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:28:34.040415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ab initio phonon self-energies and fluctuation diagnostics of phonon anomalies: Lattice instabilities from Dirac pseudospin physics in transition metal dichalcogenides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Arne Schobert, Erik G. C. P. van Loon, Jan Berges, Malte R\\\"osner, Tim O. Wehling","submitted_at":"2019-11-06T15:58:32Z","abstract_excerpt":"We present an ab initio approach for the calculation of phonon self-energies and their fluctuation diagnostics, which allows us to identify the electronic processes behind phonon anomalies. Application to the transition-metal-dichalcogenide monolayer 1H-TaS$_2$ reveals that coupling between the longitudinal-acoustic phonons and the electrons from an isolated low-energy metallic band is entirely responsible for phonon anomalies such as the mode softening and associated charge-density waves observed in this material. Our analysis allows us to distinguish between different mode-softening mechanis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.02450","kind":"arxiv","version":3},"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/1911.02450/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":"1911.02450","created_at":"2026-07-05T03:28:34.040477+00:00"},{"alias_kind":"arxiv_version","alias_value":"1911.02450v3","created_at":"2026-07-05T03:28:34.040477+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.02450","created_at":"2026-07-05T03:28:34.040477+00:00"},{"alias_kind":"pith_short_12","alias_value":"2EMXDBIHOLAL","created_at":"2026-07-05T03:28:34.040477+00:00"},{"alias_kind":"pith_short_16","alias_value":"2EMXDBIHOLALRRHF","created_at":"2026-07-05T03:28:34.040477+00:00"},{"alias_kind":"pith_short_8","alias_value":"2EMXDBIH","created_at":"2026-07-05T03:28:34.040477+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2412.02822","citing_title":"Understanding the origin of superconducting dome in electron-doped MoS$_2$ monolayer","ref_index":100,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT","json":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT.json","graph_json":"https://pith.science/api/pith-number/2EMXDBIHOLALRRHF2LJAT4T3CT/graph.json","events_json":"https://pith.science/api/pith-number/2EMXDBIHOLALRRHF2LJAT4T3CT/events.json","paper":"https://pith.science/paper/2EMXDBIH"},"agent_actions":{"view_html":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT","download_json":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT.json","view_paper":"https://pith.science/paper/2EMXDBIH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1911.02450&json=true","fetch_graph":"https://pith.science/api/pith-number/2EMXDBIHOLALRRHF2LJAT4T3CT/graph.json","fetch_events":"https://pith.science/api/pith-number/2EMXDBIHOLALRRHF2LJAT4T3CT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT/action/storage_attestation","attest_author":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT/action/author_attestation","sign_citation":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT/action/citation_signature","submit_replication":"https://pith.science/pith/2EMXDBIHOLALRRHF2LJAT4T3CT/action/replication_record"}},"created_at":"2026-07-05T03:28:34.040477+00:00","updated_at":"2026-07-05T03:28:34.040477+00:00"}