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Polarized single crystal diffraction confirms that the structure is best described as a non-collinear spin-density wave arising from a combination of itinerant and localized behavior with spin amplitude along the b-axis direction being (15 $\\pm$ 5)% larger than in the a-dire"},"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":"1012.5311","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-12-23T21:49:18Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"5743485b5b1f87ae4f6be7fc40623ed76c223a2af78ec209ffe588e37d1c5d94","abstract_canon_sha256":"a6691141cfc6e1dfeeb5e29b0a10b5472b7fde12b43173c39c17b2fef3ae2e79"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:22:31.803332Z","signature_b64":"vvK3rYKnjJQJiGK4o+23/pOxBXxxpv1AYdeJugx34NgJoIHyL6dM6XoCpDauheYVj3HDBJku1Gklby6ge5n/Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8d13329d56e86d08ee867a75b36288105fb8a77b7b1a70debcdb36b84fd55bb","last_reissued_at":"2026-05-18T04:22:31.802781Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:22:31.802781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Non-collinear spin-density wave antiferromagnetism in FeAs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"C. 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