{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:YOMBY2MRAMHTJJAQMNX34N6F4X","short_pith_number":"pith:YOMBY2MR","schema_version":"1.0","canonical_sha256":"c3981c6991030f34a410636fbe37c5e5c1d026937004393ff388194337233896","source":{"kind":"arxiv","id":"2206.14771","version":1},"attestation_state":"computed","paper":{"title":"The role of electron polarization on nuclear spin diffusion","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"cond-mat.other","authors_text":"Alessandro Chessari, Quentin Stern, Sami Jannin, Samuel F. Cousin","submitted_at":"2022-06-29T17:13:22Z","abstract_excerpt":"Dynamic nuclear polarization (DNP) is capable of boosting signals in nuclear magnetic resonance by orders of magnitude by creating out-of-equilibrium nuclear spin polarization. The diffusion of nuclear spin polarization in the vicinity of paramagnetic dopants is a crucial step for DNP and remains yet not well understood. In this Letter, we show that the polarization of the electron spin controls the rate of proton spin diffusion in a DNP sample at 1.2 K and 7 T; at increasingly high electron polarization, spin diffusion vanishes. We rationalize our results using a 2 nucleus - 1 electron model "},"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":"2206.14771","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.other","submitted_at":"2022-06-29T17:13:22Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"115cd8c2151d267b0902212bc5a61544421ab9c65d58e9061cf8ed0eee730b4c","abstract_canon_sha256":"6018f53e7d92e11d8dc650c377c5d6b4ab02f089afb657964212f7bd161421e9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:29:30.264123Z","signature_b64":"Q89qtrC3UdHVX4CIst7gA7OP5JjhL/JUh/dapEQWF2pKSFuOj/GX0ZqIReGiv7uY44ButwlEy+fOTbwNRB0uAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3981c6991030f34a410636fbe37c5e5c1d026937004393ff388194337233896","last_reissued_at":"2026-07-05T06:29:30.263608Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:29:30.263608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The role of electron polarization on nuclear spin diffusion","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"cond-mat.other","authors_text":"Alessandro Chessari, Quentin Stern, Sami Jannin, Samuel F. Cousin","submitted_at":"2022-06-29T17:13:22Z","abstract_excerpt":"Dynamic nuclear polarization (DNP) is capable of boosting signals in nuclear magnetic resonance by orders of magnitude by creating out-of-equilibrium nuclear spin polarization. The diffusion of nuclear spin polarization in the vicinity of paramagnetic dopants is a crucial step for DNP and remains yet not well understood. In this Letter, we show that the polarization of the electron spin controls the rate of proton spin diffusion in a DNP sample at 1.2 K and 7 T; at increasingly high electron polarization, spin diffusion vanishes. We rationalize our results using a 2 nucleus - 1 electron model "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.14771","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2206.14771/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2206.14771","created_at":"2026-07-05T06:29:30.263667+00:00"},{"alias_kind":"arxiv_version","alias_value":"2206.14771v1","created_at":"2026-07-05T06:29:30.263667+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.14771","created_at":"2026-07-05T06:29:30.263667+00:00"},{"alias_kind":"pith_short_12","alias_value":"YOMBY2MRAMHT","created_at":"2026-07-05T06:29:30.263667+00:00"},{"alias_kind":"pith_short_16","alias_value":"YOMBY2MRAMHTJJAQ","created_at":"2026-07-05T06:29:30.263667+00:00"},{"alias_kind":"pith_short_8","alias_value":"YOMBY2MR","created_at":"2026-07-05T06:29:30.263667+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/YOMBY2MRAMHTJJAQMNX34N6F4X","json":"https://pith.science/pith/YOMBY2MRAMHTJJAQMNX34N6F4X.json","graph_json":"https://pith.science/api/pith-number/YOMBY2MRAMHTJJAQMNX34N6F4X/graph.json","events_json":"https://pith.science/api/pith-number/YOMBY2MRAMHTJJAQMNX34N6F4X/events.json","paper":"https://pith.science/paper/YOMBY2MR"},"agent_actions":{"view_html":"https://pith.science/pith/YOMBY2MRAMHTJJAQMNX34N6F4X","download_json":"https://pith.science/pith/YOMBY2MRAMHTJJAQMNX34N6F4X.json","view_paper":"https://pith.science/paper/YOMBY2MR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2206.14771&json=true","fetch_graph":"https://pith.science/api/pith-number/YOMBY2MRAMHTJJAQMNX34N6F4X/graph.json","fetch_events":"https://pith.science/api/pith-number/YOMBY2MRAMHTJJAQMNX34N6F4X/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YOMBY2MRAMHTJJAQMNX34N6F4X/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YOMBY2MRAMHTJJAQMNX34N6F4X/action/storage_attestation","attest_author":"https://pith.science/pith/YOMBY2MRAMHTJJAQMNX34N6F4X/action/author_attestation","sign_citation":"https://pith.science/pith/YOMBY2MRAMHTJJAQMNX34N6F4X/action/citation_signature","submit_replication":"https://pith.science/pith/YOMBY2MRAMHTJJAQMNX34N6F4X/action/replication_record"}},"created_at":"2026-07-05T06:29:30.263667+00:00","updated_at":"2026-07-05T06:29:30.263667+00:00"}