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Its parent compound NdFe$_{11}$Ti has the ThMn$_{12}$ structure, which has the symmetry of space group $I4/mmm$, No. 139. The magnetization increases by doping B, C, N, O, and F at the $2b$ site of the ThMn$_{12}$ structure. The amount of the increase is larger for $X$=N, O, F than for $X$=B, C. On the other hand, the crystal field parameter $\\langle r^{2} \\rangle A_{0}^{2}$, which controls the axial magnetic anisotropy of the Nd $4f$ "},"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":"1507.03777","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-14T09:06:13Z","cross_cats_sorted":[],"title_canon_sha256":"e49ef2875347f01ddbdccd1ba07ccdfc58f7f2a3527a141f5d073173716576c2","abstract_canon_sha256":"2347ebe0f819336b4c5795bf6d1150ded70f7dffed4aab3b6df102f51fc048be"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:17.960627Z","signature_b64":"At5MgJWcUsq7m3WrIWIZkOPzHaIj/FfAt4usKv3BXaD5oY167Nxglqs9JYZrmyDGSZR+wJ8e6Zz3ff1itIhLBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b7ed4c4cd5314e806d3da78242ee61851eaab281d334d0b5c2dec23583be106","last_reissued_at":"2026-05-18T01:25:17.960018Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:17.960018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nitrogen as the best interstitial dopant among $X$=B, C, N, O and F for strong permanent magnet NdFe$_{11}$Ti$X$: First-principles study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hiori Kino, Kiyoyuki Terakura, Shoji Ishibashi, Takashi Miyake, Yosuke Harashima","submitted_at":"2015-07-14T09:06:13Z","abstract_excerpt":"We study magnetic properties of NdFe$_{11}$Ti$X$, where $X$=B, C, N, O, and F, by using the first-principles calculation based on the density functional theory. Its parent compound NdFe$_{11}$Ti has the ThMn$_{12}$ structure, which has the symmetry of space group $I4/mmm$, No. 139. The magnetization increases by doping B, C, N, O, and F at the $2b$ site of the ThMn$_{12}$ structure. The amount of the increase is larger for $X$=N, O, F than for $X$=B, C. 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