{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T14:18:22Z","timestamp":1785421102693,"version":"3.56.0"},"reference-count":0,"publisher":"International Union of Crystallography (IUCr)","issue":"1","license":[{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["16K05604"],"award-info":[{"award-number":["16K05604"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr B Struct Sci Cryst Eng Mater","Acta Crystallogr B","Acta Crystallogr B Struct Sci","Acta Cryst B","Acta Cryst B Struct Sci Cryst Eng Mater","Acta Cryst Sect B","Acta Cryst Sect B Struct Sci Cryst Eng Mater","Acta Crystallogr Sect B","Acta Crystallogr Sect B Struct Sci Cryst Eng Mater","Acta Crystallogr Sect B Struct Sci"],"accepted":{"date-parts":[[2025,11,9]]},"published-print":{"date-parts":[[2026,2,1]]},"abstract":"\n Single crystal specimens of Fe\n 2.992<\/jats:sub>\n O\n 4<\/jats:sub>\n (magnetite), Fe\n \n 3\u2013\n x<\/jats:italic>\n \u2013\n y<\/jats:italic>\n <\/jats:sub>\n Mn\n \n x<\/jats:sub>\n <\/jats:italic>\n \u25a1\n \n y<\/jats:sub>\n <\/jats:italic>\n O\n 4<\/jats:sub>\n (\n x<\/jats:italic>\n \u2264 0.980) and Fe\n \n 3\u2013\n x<\/jats:italic>\n \u2013\n y<\/jats:italic>\n <\/jats:sub>\n Ni\n \n x<\/jats:sub>\n <\/jats:italic>\n \u25a1\n \n y<\/jats:sub>\n <\/jats:italic>\n O\n 4<\/jats:sub>\n (\n x<\/jats:italic>\n \u2264 0.513, \u25a1 denotes point defects) are prepared using a floating-zone technique, and changes in their structural parameter values with\n x<\/jats:italic>\n are examined at room temperature. Preferences of Mn, Ni and point defects at A, B and B sites, respectively, are confirmed by single-crystal X-ray diffraction experiments, while preference of Mn at the A site is not perfectly accomplished in Fe\n 2.010<\/jats:sub>\n Mn\n 0.980<\/jats:sub>\n O\n 4<\/jats:sub>\n . Mean-square displacements of atoms along the\n 3<\/jats:overline>\n axis in [111] are peculiarly large at the B site in Fe\n 2.992<\/jats:sub>\n O\n 4<\/jats:sub>\n and the displacement decreased smoothly in both series, to nearly half in Fe\n 2.010<\/jats:sub>\n Mn\n 0.980<\/jats:sub>\n O\n 4<\/jats:sub>\n , with increasing amount of heteroatom. On the other hand, displacements normal to the direction show only slight convexity with\n x<\/jats:italic>\n due to coexistence of the heteroatom. As a result anisotropy in displacements (dominant in [111] at\n x<\/jats:italic>\n = 0) is inverted at\n x<\/jats:italic>\n = 0.3 in FeMn series and would expectedly be inverted at\n x<\/jats:italic>\n \u2243 0.55 in FeNi series. In spite of different locations of heteroatoms and slightly different inversion points on anisotropy, changes in mean-square displacements at the B site in [111] in these series are found on similar lines with changing amounts of heteroatom. In other words, the amount of this displacement is a function of the amount of Fe\n 2+<\/jats:sup>\n , or remnant electron from the itinerant-electron point-of-view, on the B-site substructure in these compounds. This characteristic lattice mode on the B-site substructure could be interpreted as an average of local distortion of the substructure due to `trimeron' [Senn\n et al.<\/jats:italic>\n (2012).\n Nature<\/jats:italic>\n ,\n 481<\/jats:bold>\n , 173\u2013176] and some other modes such as distortion in \u2329001\u232a [Siratori & Kino (1980).\n J. Magn. Magn. Mat<\/jats:italic>\n .\n 20<\/jats:bold>\n , 87\u201390], which move in the high-temperature structure.\n <\/jats:p>","DOI":"10.1107\/s2052520625009928","type":"journal-article","created":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T15:39:30Z","timestamp":1769096370000},"page":"98-107","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":1,"title":["Disappearance of peculiarly large atomic displacement in the high-temperature phase of magnetite with substitution of Fe\n 2+<\/sup>\n by Ni\n 2+<\/sup>\n and Mn\n 2+<\/sup>"],"prefix":"10.1107","volume":"82","author":[{"given":"Takumi","family":"Kitamura","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02hwp6a56","id-type":"ROR","asserted-by":"publisher"}],"department":["Graduate School of Natural Science and Technology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takahiro","family":"Niimi","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02hwp6a56","id-type":"ROR","asserted-by":"publisher"}],"department":["Graduate School of Natural Science and Technology"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6324-2339","authenticated-orcid":true,"given":"Hiroki","family":"Okudera","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02hwp6a56","id-type":"ROR","asserted-by":"publisher"}],"department":["School of Geosciences and Civil Engineering, College of Science and Engineering"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2026,2,1]]},"container-title":["Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials"],"original-title":[],"link":[{"URL":"https:\/\/journals.iucr.org\/b\/issues\/2026\/01\/00\/lo5130\/lo5130.pdf","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.iucr.org\/b\/issues\/2026\/01\/00\/lo5130\/lo5130.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T14:09:06Z","timestamp":1770127746000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.iucr.org\/paper?S2052520625009928"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2,1]]},"references-count":0,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,2]]}},"alternative-id":["S2052520625009928"],"URL":"https:\/\/doi.org\/10.1107\/s2052520625009928","relation":{"is-supplemented-by":[{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130sup1.cif","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130mgt2sup2.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130mn01sup3.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130mn02sup4.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130mn03sup5.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130mn05sup6.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130mn06sup7.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130mn10sup8.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130ni01sup9.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130ni02sup10.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130ni03sup11.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130ni04sup12.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130ni05sup13.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2052520625009928\/lo5130ni06sup14.hkl","asserted-by":"subject"}]},"ISSN":["2052-5206"],"issn-type":[{"value":"2052-5206","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,2,1]]},"assertion":[{"value":"Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials","order":0,"name":"journal","label":"Publication","explanation":{"URL":"https:\/\/journals.iucr.org\/b"},"group":{"name":"general","label":"General"}},{"value":"research papers","order":1,"name":"content_type","label":"Content type","explanation":{"URL":"https:\/\/journals.iucr.org\/b\/services\/notesforauthors.html"},"group":{"name":"general","label":"General"}},{"value":"Available","URL":"https:\/\/scripts.iucr.org\/cgi-bin\/citedin?lo5130","order":2,"name":"article_metrics","label":"Article metrics","group":{"name":"general","label":"General"}},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"10 October 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(CC-BY)","order":1,"name":"license","label":"Licence","explanation":{"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},"group":{"name":"copyright_and_licencing","label":"Copyright and licencing"}}]}}