{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:HSPVZSE4DTS4YYRIFYHFZ77KWX","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"82db7e21fdf12097070b820f7d246c7e7808b555809c3cd313bc74ed7a4d5788","cross_cats_sorted":["cond-mat.mes-hall","physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-04-21T07:16:39Z","title_canon_sha256":"fd3192999f1e5a88a8a701a4d67c1bea1814168011b5787536ca79c6de272f59"},"schema_version":"1.0","source":{"id":"2404.13560","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.13560","created_at":"2026-07-05T08:10:34Z"},{"alias_kind":"arxiv_version","alias_value":"2404.13560v1","created_at":"2026-07-05T08:10:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.13560","created_at":"2026-07-05T08:10:34Z"},{"alias_kind":"pith_short_12","alias_value":"HSPVZSE4DTS4","created_at":"2026-07-05T08:10:34Z"},{"alias_kind":"pith_short_16","alias_value":"HSPVZSE4DTS4YYRI","created_at":"2026-07-05T08:10:34Z"},{"alias_kind":"pith_short_8","alias_value":"HSPVZSE4","created_at":"2026-07-05T08:10:34Z"}],"graph_snapshots":[{"event_id":"sha256:5f536d529b4d4ecfbe531f4f576e37fb73e5196f81295115af6fab9164a39481","target":"graph","created_at":"2026-07-05T08:10:34Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2404.13560/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Strain is an effective strategy to modulate the optoelectronic properties of 2D materials, but it has been almost unexplored in layered hybrid organic-inorganic metal halide perovskites (HOIPs) due to their complex band structure and mechanical properties. Here, we investigate the temperature-dependent microphotoluminescence (PL) of 2D $(C_6H_5CH_2CH_2NH_3)_2Cs_3Pb_4Br_{13}$ HOIP subject to biaxial strain induced by a $SiO_2$ ring platform on which flakes are placed by viscoelastic stamping. At 80 K, we found that a strain of <1% can change the PL emission from a single peak (unstrained) to th","authors_text":"Beatriz Mart\\'in-Garc\\'ia, Costanza Lucia Manganelli, Davide Spirito, F\\`elix Casanova, Francesco Calavalle, Luis E. Hueso, Marco Gobbi, Mar\\'ia Barra-Burillo, Rainer Hillenbrand","cross_cats":["cond-mat.mes-hall","physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-04-21T07:16:39Z","title":"Tailoring Photoluminescence by Strain-Engineering in Layered Perovskite Flakes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.13560","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:9c7e8162584358c1bcc69c4ef5e47f12e2769430ce2721b413d465dc147b9635","target":"record","created_at":"2026-07-05T08:10:34Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"82db7e21fdf12097070b820f7d246c7e7808b555809c3cd313bc74ed7a4d5788","cross_cats_sorted":["cond-mat.mes-hall","physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-04-21T07:16:39Z","title_canon_sha256":"fd3192999f1e5a88a8a701a4d67c1bea1814168011b5787536ca79c6de272f59"},"schema_version":"1.0","source":{"id":"2404.13560","kind":"arxiv","version":1}},"canonical_sha256":"3c9f5cc89c1ce5cc62282e0e5cffeab5d8903f93b6b7704d048d77e83af94ad9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c9f5cc89c1ce5cc62282e0e5cffeab5d8903f93b6b7704d048d77e83af94ad9","first_computed_at":"2026-07-05T08:10:34.168143Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:10:34.168143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZO5UJ/m/0UHv/MpJuM5i0YtUZmODnczTzJeHPvaMx1xGUDs1bn+0TyLQdE2mfktFCz34sH4s/o5eFcZRmyvfDw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:10:34.168608Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.13560","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c7e8162584358c1bcc69c4ef5e47f12e2769430ce2721b413d465dc147b9635","sha256:5f536d529b4d4ecfbe531f4f576e37fb73e5196f81295115af6fab9164a39481"],"state_sha256":"8a5226a023c3e2d28275492a0a64ba8423aba504517ac21f30c0f1ab8a872ecf"}