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dc.contributor.authorZeng, Xue
dc.contributor.authorZhang, Junwei
dc.contributor.authorZhu, Shimeng
dc.contributor.authorDeng, Xia
dc.contributor.authorMa, Hongbin
dc.contributor.authorZhang, Junli
dc.contributor.authorZhang, Qiang
dc.contributor.authorLi, Peng
dc.contributor.authorXue, Desheng
dc.contributor.authorMellors, Nigel J
dc.contributor.authorZhang, Xixiang
dc.contributor.authorPeng, Yong
dc.date.accessioned2017-05-31T11:23:07Z
dc.date.available2017-05-31T11:23:07Z
dc.date.issued2017-04-25
dc.identifier.citationZeng X, Zhang J, Zhu S, Deng X, Ma H, et al. (2017) Direct observation of cation distributions of ideal inverse spinel CoFe2O4 nanofibres and correlated magnetic properties. Nanoscale. Available: http://dx.doi.org/10.1039/c7nr02013a.
dc.identifier.issn2040-3364
dc.identifier.issn2040-3372
dc.identifier.pmid28530735
dc.identifier.doi10.1039/c7nr02013a
dc.identifier.urihttp://hdl.handle.net/10754/623820
dc.description.abstractLow-dimensional spinel ferrites have recently attracted increasing attention because their tunable magnetic properties make them attractive candidates as spin-filtering tunnel barriers in spintronic devices and as magnetic components in artificial multiferroic heterostructures. Although we know that the distribution of cations (Fe3+ and Co2+) in a spinel structure governs its magnetic properties, their distribution in the so-called ideal inverse spinel structure of a ferrite, CoFe2O4, has not yet been imaged with sub-ångstrom resolution. In this work, we fill this gap in evidence by reporting a direct observation of the distribution of cations in an ideal inverse spinel structure of CoFe2O4 nanofibres using aberration-corrected transmission electron microscopy (TEM). The ordering of Co2+ and Fe3+ at the octahedral sites imaged along either [001], [011] or [-112] orientation was identified as 1 : 1, in accordance with the ideal inverse spinel structure. The saturation magnetisation calculated based on the crystal structure as determined from the TEM image is in good agreement with that measured experimentally on the spinel CoFe2O4 nanofibres, further confirming results from TEM.
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (51571104 and 11274145), the MOST International Cooperation Funds (2014DFA91340), and the Program for Changjiang Scholars and Innovative Research Team in the University (Grant No. IRT1251).
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/NR/C7NR02013A#!divAbstract
dc.titleDirect observation of cation distributions of ideal inverse spinel CoFe2O4 nanofibres and correlated magnetic properties
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalNanoscale
dc.contributor.institutionKey Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China. pengy@lzu.edu.cn.
dc.contributor.institutionNano Materials Group, School of Computing, Science and Engineering, University of Salford, Greater Manchester M5 4WT, UK.
kaust.personZhang, Qiang
kaust.personLi, Peng
kaust.personZhang, Xixiang


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