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On the basis of density functional theory, we calculate the interfacial anisotropy constant $K_{\\rm i}$ and show that this system has interfacial perpendicular magnetic anisotropy (PMA) with $K_{\\rm i} \\approx 1.2\\,{\\rm mJ/m^2}$, which is a little bit smaller than that of Fe/MgO ($K_{\\rm i} \\approx$ 1.5--1.7$\\,{\\rm mJ/m^2"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1803.10428","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T06:44:33Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"733329cde88de5144f89fef80a7e6642c8cbdad9fc69646297f558289a30da52","abstract_canon_sha256":"1ba6d00b3e1e3fa5a2569bc6d72bb48ee4ba6b8e81c022f53988c8f0371dd3fb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:21.640371Z","signature_b64":"aH8o966PgeoWxd8XZ4SvH+MzKtb7s+tWPg/5Zw/b9L9aTLQS25+oZ3WWUl7+TyDchDWDV6Wn3VxCNom98LFUBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c7fbc1d40c9a46730542aea0ddaaf0eee96bcbef8de3bd90011afb283cf90637","last_reissued_at":"2026-05-17T23:57:21.639724Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:21.639724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Perpendicular magnetic anisotropy at the Fe/MgAl$_2$O$_4$ interface: Comparative first-principles study with Fe/MgO","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Keisuke Masuda, Yoshio Miura","submitted_at":"2018-03-28T06:44:33Z","abstract_excerpt":"We present a theoretical study on interfacial magnetocrystalline anisotropy for Fe/MgAl$_2$O$_4$. 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