{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:AJVATQMDWMYIXY5HCM6ZC6VBVL","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":"a96b5ddfa51fceee168b85e8e68a14db1a70a31e3c19122b22d28975c1088eb9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-06-19T19:59:35Z","title_canon_sha256":"56cc0f3733e7aec348bb1e7cba26db925fe93335d3bdd32556f8adad4ae5c59f"},"schema_version":"1.0","source":{"id":"1306.4668","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4668","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4668v1","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4668","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"AJVATQMDWMYI","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AJVATQMDWMYIXY5H","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AJVATQMD","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:c6ce35573655311d8ac3ddad9623f31785aaf9a497889af0c82c189ef78aea9e","target":"graph","created_at":"2026-05-18T01:49:14Z","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 an approach to improving the performance of spin torque nano-oscillators (STNOs) that utilizes power-dependent negative feedback to achieve a significantly enhanced dynamic damping. In combination with a sufficiently slow variation of frequency with power this can result in a quasi-linear STNO, with very weak non-linear coupling of power and phase fluctuations over a range of bias current and field. An implementation of this approach that utilizes a non-uniform spin-torque demonstrates that highly coherent room temperature STNOs can be achieved while retaining a significant tunabilit","authors_text":"D. C. Ralph, O. J. Lee, P. M. Braganca, R. A. Buhrman, V. S. Pribiag","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-06-19T19:59:35Z","title":"A quasi-linear spin-torque nano-oscillator via enhanced negative feedback of power fluctuations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4668","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:fb21f0ab2632aa63eca6136f5fc92093dc309431f1550855f4b1044f9b21c81a","target":"record","created_at":"2026-05-18T01:49:14Z","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":"a96b5ddfa51fceee168b85e8e68a14db1a70a31e3c19122b22d28975c1088eb9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-06-19T19:59:35Z","title_canon_sha256":"56cc0f3733e7aec348bb1e7cba26db925fe93335d3bdd32556f8adad4ae5c59f"},"schema_version":"1.0","source":{"id":"1306.4668","kind":"arxiv","version":1}},"canonical_sha256":"026a09c183b3308be3a7133d917aa1aaf0d1e8f4efbe4e38fdc29d37550ba3f3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"026a09c183b3308be3a7133d917aa1aaf0d1e8f4efbe4e38fdc29d37550ba3f3","first_computed_at":"2026-05-18T01:49:14.667980Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:14.667980Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cv8DAmEQO3JGiwuoLPZm1IG1qdJtOTTDKIp/E9vVAtdE6AmYJNIhDfKsIANW/ya+CedT5glAdLtP/iColbBZDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:14.668531Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.4668","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fb21f0ab2632aa63eca6136f5fc92093dc309431f1550855f4b1044f9b21c81a","sha256:c6ce35573655311d8ac3ddad9623f31785aaf9a497889af0c82c189ef78aea9e"],"state_sha256":"caa56513369ce357ab2e0df66bfa577a92997920f2d98614c86fc3bea77c28c4"}