{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:5WV6BY5ZSWYPHVTJKEZANH4RUY","short_pith_number":"pith:5WV6BY5Z","schema_version":"1.0","canonical_sha256":"edabe0e3b995b0f3d6695132069f91a63174660d1c316be6d44ea6d6c485e63e","source":{"kind":"arxiv","id":"1901.02225","version":1},"attestation_state":"computed","paper":{"title":"A corner reflector of graphene Dirac fermions as a phonon-scattering sensor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"B. Pla\\c{c}ais, C. Stampfer, D. Mele, E. Bocquillon, E.H.T. Teo, G. F\\`eve, H. Graef, J-M. Berroir, K. Watanabe, L. Banszerus, M. Rosticher, Q. Wilmart, T. Taniguchi","submitted_at":"2019-01-08T10:00:45Z","abstract_excerpt":"Dirac fermion optics exploits the refraction of chiral fermions across optics-inspired Klein-tunneling barriers defined by high-transparency p-n junctions. We consider the corner reflector (CR) geometry introduced in optics or radars. We fabricate Dirac fermion CRs using bottom-gate-defined barriers in hBN-encapsulated graphene. By suppressing transmission upon multiple internal reflections, CRs are sensitive to minute phonon scattering rates. We report on doping-independent CR transmission in quantitative agreement with a simple scattering model including thermal phonon scattering. As a new s"},"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":"1901.02225","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-08T10:00:45Z","cross_cats_sorted":[],"title_canon_sha256":"03c4cc865efae25456871f9215af3b75b2836b81ac2a685aeb2f1e2d8c11e690","abstract_canon_sha256":"aeeca4ebbdfec733a1d0ad39c8d36c9fb1181bb936251f2c536afc4e0e768b0a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:03.829297Z","signature_b64":"myGeEDmuvJokhmD/Weco+gQNz5TO5RHQxxDFmsMZuzBhXXDuS8gMOuzM4Cp6WhyR32xxDHy3Nw52jQRzK2rlBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"edabe0e3b995b0f3d6695132069f91a63174660d1c316be6d44ea6d6c485e63e","last_reissued_at":"2026-05-17T23:43:03.828848Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:03.828848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A corner reflector of graphene Dirac fermions as a phonon-scattering sensor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"B. Pla\\c{c}ais, C. Stampfer, D. Mele, E. Bocquillon, E.H.T. Teo, G. F\\`eve, H. Graef, J-M. Berroir, K. Watanabe, L. Banszerus, M. Rosticher, Q. Wilmart, T. Taniguchi","submitted_at":"2019-01-08T10:00:45Z","abstract_excerpt":"Dirac fermion optics exploits the refraction of chiral fermions across optics-inspired Klein-tunneling barriers defined by high-transparency p-n junctions. We consider the corner reflector (CR) geometry introduced in optics or radars. We fabricate Dirac fermion CRs using bottom-gate-defined barriers in hBN-encapsulated graphene. By suppressing transmission upon multiple internal reflections, CRs are sensitive to minute phonon scattering rates. We report on doping-independent CR transmission in quantitative agreement with a simple scattering model including thermal phonon scattering. As a new s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.02225","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":""},"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":"1901.02225","created_at":"2026-05-17T23:43:03.828912+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.02225v1","created_at":"2026-05-17T23:43:03.828912+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.02225","created_at":"2026-05-17T23:43:03.828912+00:00"},{"alias_kind":"pith_short_12","alias_value":"5WV6BY5ZSWYP","created_at":"2026-05-18T12:33:10.108867+00:00"},{"alias_kind":"pith_short_16","alias_value":"5WV6BY5ZSWYPHVTJ","created_at":"2026-05-18T12:33:10.108867+00:00"},{"alias_kind":"pith_short_8","alias_value":"5WV6BY5Z","created_at":"2026-05-18T12:33:10.108867+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/5WV6BY5ZSWYPHVTJKEZANH4RUY","json":"https://pith.science/pith/5WV6BY5ZSWYPHVTJKEZANH4RUY.json","graph_json":"https://pith.science/api/pith-number/5WV6BY5ZSWYPHVTJKEZANH4RUY/graph.json","events_json":"https://pith.science/api/pith-number/5WV6BY5ZSWYPHVTJKEZANH4RUY/events.json","paper":"https://pith.science/paper/5WV6BY5Z"},"agent_actions":{"view_html":"https://pith.science/pith/5WV6BY5ZSWYPHVTJKEZANH4RUY","download_json":"https://pith.science/pith/5WV6BY5ZSWYPHVTJKEZANH4RUY.json","view_paper":"https://pith.science/paper/5WV6BY5Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.02225&json=true","fetch_graph":"https://pith.science/api/pith-number/5WV6BY5ZSWYPHVTJKEZANH4RUY/graph.json","fetch_events":"https://pith.science/api/pith-number/5WV6BY5ZSWYPHVTJKEZANH4RUY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5WV6BY5ZSWYPHVTJKEZANH4RUY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5WV6BY5ZSWYPHVTJKEZANH4RUY/action/storage_attestation","attest_author":"https://pith.science/pith/5WV6BY5ZSWYPHVTJKEZANH4RUY/action/author_attestation","sign_citation":"https://pith.science/pith/5WV6BY5ZSWYPHVTJKEZANH4RUY/action/citation_signature","submit_replication":"https://pith.science/pith/5WV6BY5ZSWYPHVTJKEZANH4RUY/action/replication_record"}},"created_at":"2026-05-17T23:43:03.828912+00:00","updated_at":"2026-05-17T23:43:03.828912+00:00"}