{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ND7EMFDPVUWHRVHRVZHDUQRYO6","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":"24d7be79b5d122d20e31a7d986b24d27673ddef262ea8026279a2cad09776ee9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-05-16T18:01:32Z","title_canon_sha256":"9d88c4b92072e3923a4dc08c8b558ebe30ce4a034d688e688ec1b14fa17942dd"},"schema_version":"1.0","source":{"id":"1305.3880","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.3880","created_at":"2026-05-18T03:12:48Z"},{"alias_kind":"arxiv_version","alias_value":"1305.3880v2","created_at":"2026-05-18T03:12:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.3880","created_at":"2026-05-18T03:12:48Z"},{"alias_kind":"pith_short_12","alias_value":"ND7EMFDPVUWH","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"ND7EMFDPVUWHRVHR","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"ND7EMFDP","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:56f02de4dd78a61c2f0c6913572b5656bf88d336388af70a1b5e602a2e46da52","target":"graph","created_at":"2026-05-18T03:12:48Z","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"},"paper":{"abstract_excerpt":"We report the influence of uniaxial tensile mechanical strain in the range 0-2.2% on the phonon spectra and bandstructures of monolayer and bilayer molybdenum disulfide (MoS2) two-dimensional crystals. First, we employ Raman spectroscopy to observe phonon softening with increased strain, breaking the degeneracy in the E' Raman mode of MoS2, and extract a Gr\\\"uneisen parameter of ~1.06. Second, using photoluminescence spectroscopy we measure a decrease in the optical band gap of MoS2 that is roughly linear with strain, ~45 meV% strain for monolayer MoS2 and ~120 meV% strain for bilayer MoS2. Th","authors_text":"Bin Wang, Hiram J. Conley, Jed I. Ziegler, Kirill I. Bolotin, Richard F. Haglund Jr., Sokrates T. Pantelides","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-05-16T18:01:32Z","title":"Bandgap Engineering of Strained Monolayer and Bilayer MoS2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.3880","kind":"arxiv","version":2},"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":"sha256:73276f0abcad79aca4415fb90d1232b3771a07674feb764178e358b2611de03a","target":"record","created_at":"2026-05-18T03:12:48Z","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":"24d7be79b5d122d20e31a7d986b24d27673ddef262ea8026279a2cad09776ee9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-05-16T18:01:32Z","title_canon_sha256":"9d88c4b92072e3923a4dc08c8b558ebe30ce4a034d688e688ec1b14fa17942dd"},"schema_version":"1.0","source":{"id":"1305.3880","kind":"arxiv","version":2}},"canonical_sha256":"68fe46146fad2c78d4f1ae4e3a423877be8925eba1309983a2c383ee0dcd3e7b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"68fe46146fad2c78d4f1ae4e3a423877be8925eba1309983a2c383ee0dcd3e7b","first_computed_at":"2026-05-18T03:12:48.165907Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:12:48.165907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jd7I8Tfv/5aeFM+dhG/CBuRRiyqW5YUBpQdsISYzl97xzYWs7p61xiVYkowf03RCqLsWyAI0tIYnYigGHh9EAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:12:48.166705Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.3880","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73276f0abcad79aca4415fb90d1232b3771a07674feb764178e358b2611de03a","sha256:56f02de4dd78a61c2f0c6913572b5656bf88d336388af70a1b5e602a2e46da52"],"state_sha256":"9669cd36605bdaa45604a3febf5132c7b1b345a427c2c3ec2426c84bef1078e7"}