{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:3YPJ4FWJGZTNEHCT3ITDT3JV4D","short_pith_number":"pith:3YPJ4FWJ","schema_version":"1.0","canonical_sha256":"de1e9e16c93666d21c53da2639ed35e0ff8e5b2077f28c8915c017a19de9a1c7","source":{"kind":"arxiv","id":"1803.06489","version":1},"attestation_state":"computed","paper":{"title":"Experimental evidences of trions and Fermi edge singularity in single barrier GaAs/AlAs/GaAs heterostructure using photocapacitance spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas"],"primary_cat":"cond-mat.mes-hall","authors_text":"Amit Bhunia, Mohamed Henini, Mohit Kumar Singh, Shouvik Datta, Y. Galvao Gobato","submitted_at":"2018-03-17T11:10:01Z","abstract_excerpt":"In this paper, we show how photocapacitance spectra can probe two dimensional excitonic complexes and Fermi edge singularity as a function of applied bias around 100 K. In lower density regimes (<1x1011cm^-2), the appearance of two distinct peaks in the spectra are identified as a signature of coexistence of both excitons and positively charged trions. We estimate the binding energy of these trions as ~2.0 meV. In the higher density regimes (>1x10^11 cm^-2), we observe a sharp spectral transition from trions to asymmetric shaped Fermi edge singularity in the photocapacitance spectra around a p"},"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":"1803.06489","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-03-17T11:10:01Z","cross_cats_sorted":["cond-mat.quant-gas"],"title_canon_sha256":"02b29f19918303244bdebefadfd20ebde803ae910bba79b9bdac10569bb915e1","abstract_canon_sha256":"592cfa89d49e8806db83c69a296e7509ddbb2cd356018c85480ba7b81bab2436"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:55.049575Z","signature_b64":"O7VNPTe8prPX7cquU3JEG5udjHtlJXv964tQuIj8XVWF1HvElCZNx2RrP8YEeH0w4kUyA6XuIHracTWBW0S9AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de1e9e16c93666d21c53da2639ed35e0ff8e5b2077f28c8915c017a19de9a1c7","last_reissued_at":"2026-05-18T00:02:55.048816Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:55.048816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Experimental evidences of trions and Fermi edge singularity in single barrier GaAs/AlAs/GaAs heterostructure using photocapacitance spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas"],"primary_cat":"cond-mat.mes-hall","authors_text":"Amit Bhunia, Mohamed Henini, Mohit Kumar Singh, Shouvik Datta, Y. Galvao Gobato","submitted_at":"2018-03-17T11:10:01Z","abstract_excerpt":"In this paper, we show how photocapacitance spectra can probe two dimensional excitonic complexes and Fermi edge singularity as a function of applied bias around 100 K. In lower density regimes (<1x1011cm^-2), the appearance of two distinct peaks in the spectra are identified as a signature of coexistence of both excitons and positively charged trions. We estimate the binding energy of these trions as ~2.0 meV. In the higher density regimes (>1x10^11 cm^-2), we observe a sharp spectral transition from trions to asymmetric shaped Fermi edge singularity in the photocapacitance spectra around a p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.06489","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":"1803.06489","created_at":"2026-05-18T00:02:55.048948+00:00"},{"alias_kind":"arxiv_version","alias_value":"1803.06489v1","created_at":"2026-05-18T00:02:55.048948+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.06489","created_at":"2026-05-18T00:02:55.048948+00:00"},{"alias_kind":"pith_short_12","alias_value":"3YPJ4FWJGZTN","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_16","alias_value":"3YPJ4FWJGZTNEHCT","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_8","alias_value":"3YPJ4FWJ","created_at":"2026-05-18T12:32:05.422762+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/3YPJ4FWJGZTNEHCT3ITDT3JV4D","json":"https://pith.science/pith/3YPJ4FWJGZTNEHCT3ITDT3JV4D.json","graph_json":"https://pith.science/api/pith-number/3YPJ4FWJGZTNEHCT3ITDT3JV4D/graph.json","events_json":"https://pith.science/api/pith-number/3YPJ4FWJGZTNEHCT3ITDT3JV4D/events.json","paper":"https://pith.science/paper/3YPJ4FWJ"},"agent_actions":{"view_html":"https://pith.science/pith/3YPJ4FWJGZTNEHCT3ITDT3JV4D","download_json":"https://pith.science/pith/3YPJ4FWJGZTNEHCT3ITDT3JV4D.json","view_paper":"https://pith.science/paper/3YPJ4FWJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1803.06489&json=true","fetch_graph":"https://pith.science/api/pith-number/3YPJ4FWJGZTNEHCT3ITDT3JV4D/graph.json","fetch_events":"https://pith.science/api/pith-number/3YPJ4FWJGZTNEHCT3ITDT3JV4D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3YPJ4FWJGZTNEHCT3ITDT3JV4D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3YPJ4FWJGZTNEHCT3ITDT3JV4D/action/storage_attestation","attest_author":"https://pith.science/pith/3YPJ4FWJGZTNEHCT3ITDT3JV4D/action/author_attestation","sign_citation":"https://pith.science/pith/3YPJ4FWJGZTNEHCT3ITDT3JV4D/action/citation_signature","submit_replication":"https://pith.science/pith/3YPJ4FWJGZTNEHCT3ITDT3JV4D/action/replication_record"}},"created_at":"2026-05-18T00:02:55.048948+00:00","updated_at":"2026-05-18T00:02:55.048948+00:00"}