{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:BYWMBC7W5L4KH6SUZUB2X7TCBG","short_pith_number":"pith:BYWMBC7W","schema_version":"1.0","canonical_sha256":"0e2cc08bf6eaf8a3fa54cd03abfe6209a8ccb4ae058c7aa453a7b77da7ec8a75","source":{"kind":"arxiv","id":"1606.05071","version":2},"attestation_state":"computed","paper":{"title":"Raman signatures of inversion symmetry breaking and structural phase transition in type-II Weyl semimetal MoTe2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Changhua Bao, Haoxiong Zhang, Ji Feng, Ke Deng, Kenan Zhang, Qiangqiang Gu, Shuyun Zhou, Xiao Ren, Yang Wu, Yuan Li","submitted_at":"2016-06-16T07:29:20Z","abstract_excerpt":"Transition metal dichalcogenide MoTe$_2$ is an important candidate for realizing the newly predicted type-IIWeyl fermions, for which the breaking of the inversion symmetry is a prerequisite. Here we present direct spectroscopic evidence for the inversion symmetry breaking in the low temperature phase of MoTe$_2$ by systematic Raman experiments and first principles calculations. We identify five lattice vibrational modes which are Raman active only in noncentrosymmetric structure at low temperature. A hysteresis is also observed in the peak intensity of inversion symmetry activated Raman modes,"},"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":"1606.05071","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-06-16T07:29:20Z","cross_cats_sorted":[],"title_canon_sha256":"7dc0e2c2e4073d55e8bb777188019054c3fb13352d401a7c2b83b4485f4e67aa","abstract_canon_sha256":"658372fedfab93846388783d7623d076b2b1bfb0078fc4813af464bcc5bb5b59"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:54:47.624377Z","signature_b64":"YZh21zp0pBf2dagO8Zb3vRViBsiQwNedCdzTccL4qp60iYyeg0CymjqxVR3eyy7rKMAo5ruKqRmkrdJG4H6mAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e2cc08bf6eaf8a3fa54cd03abfe6209a8ccb4ae058c7aa453a7b77da7ec8a75","last_reissued_at":"2026-05-18T00:54:47.623927Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:54:47.623927Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Raman signatures of inversion symmetry breaking and structural phase transition in type-II Weyl semimetal MoTe2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Changhua Bao, Haoxiong Zhang, Ji Feng, Ke Deng, Kenan Zhang, Qiangqiang Gu, Shuyun Zhou, Xiao Ren, Yang Wu, Yuan Li","submitted_at":"2016-06-16T07:29:20Z","abstract_excerpt":"Transition metal dichalcogenide MoTe$_2$ is an important candidate for realizing the newly predicted type-IIWeyl fermions, for which the breaking of the inversion symmetry is a prerequisite. Here we present direct spectroscopic evidence for the inversion symmetry breaking in the low temperature phase of MoTe$_2$ by systematic Raman experiments and first principles calculations. We identify five lattice vibrational modes which are Raman active only in noncentrosymmetric structure at low temperature. A hysteresis is also observed in the peak intensity of inversion symmetry activated Raman modes,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.05071","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":""},"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":"1606.05071","created_at":"2026-05-18T00:54:47.623993+00:00"},{"alias_kind":"arxiv_version","alias_value":"1606.05071v2","created_at":"2026-05-18T00:54:47.623993+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.05071","created_at":"2026-05-18T00:54:47.623993+00:00"},{"alias_kind":"pith_short_12","alias_value":"BYWMBC7W5L4K","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_16","alias_value":"BYWMBC7W5L4KH6SU","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_8","alias_value":"BYWMBC7W","created_at":"2026-05-18T12:30:09.641336+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/BYWMBC7W5L4KH6SUZUB2X7TCBG","json":"https://pith.science/pith/BYWMBC7W5L4KH6SUZUB2X7TCBG.json","graph_json":"https://pith.science/api/pith-number/BYWMBC7W5L4KH6SUZUB2X7TCBG/graph.json","events_json":"https://pith.science/api/pith-number/BYWMBC7W5L4KH6SUZUB2X7TCBG/events.json","paper":"https://pith.science/paper/BYWMBC7W"},"agent_actions":{"view_html":"https://pith.science/pith/BYWMBC7W5L4KH6SUZUB2X7TCBG","download_json":"https://pith.science/pith/BYWMBC7W5L4KH6SUZUB2X7TCBG.json","view_paper":"https://pith.science/paper/BYWMBC7W","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1606.05071&json=true","fetch_graph":"https://pith.science/api/pith-number/BYWMBC7W5L4KH6SUZUB2X7TCBG/graph.json","fetch_events":"https://pith.science/api/pith-number/BYWMBC7W5L4KH6SUZUB2X7TCBG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BYWMBC7W5L4KH6SUZUB2X7TCBG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BYWMBC7W5L4KH6SUZUB2X7TCBG/action/storage_attestation","attest_author":"https://pith.science/pith/BYWMBC7W5L4KH6SUZUB2X7TCBG/action/author_attestation","sign_citation":"https://pith.science/pith/BYWMBC7W5L4KH6SUZUB2X7TCBG/action/citation_signature","submit_replication":"https://pith.science/pith/BYWMBC7W5L4KH6SUZUB2X7TCBG/action/replication_record"}},"created_at":"2026-05-18T00:54:47.623993+00:00","updated_at":"2026-05-18T00:54:47.623993+00:00"}