Deposition of Magnetite Nanofilms by Pulsed Injection MOCVD in a Magnetic Field

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Zukova, Anna Teiserskis, Arunas Rohava, Yuliya Baranov, Alexander van Dijken, Sebastiaan Gun'ko, Yurii K. 2019-02-25T08:52:11Z 2019-02-25T08:52:11Z 2018-12
dc.identifier.citation Zukova , A , Teiserskis , A , Rohava , Y , Baranov , A , van Dijken , S & Gun'ko , Y K 2018 , ' Deposition of Magnetite Nanofilms by Pulsed Injection MOCVD in a Magnetic Field ' Nanomaterials , vol. 8 , no. 12 , 1064 . en
dc.identifier.issn 2079-4991
dc.identifier.other PURE UUID: b6c9d60e-f9cf-4e37-80ca-6205ad243999
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract This report is on the growth of Fe3O4 nanofilms on Al2O3(0001) and MgO(001) substrates with and without the presence of an external magnetic field using a pulsed injection metallorganic chemical vapour deposition (PI MOCVD) technique. The effects of growing magnetic oxide nanofilms in a 1 T field have been examined using various instrumental methods. It was found that the application of a magnetic field during PI MOCVD does not drastically alter the crystalline texture, surface morphology, and film thickness, but it significantly modifies the Fe3O4 film magnetisation and coercive field. Moreover, it was shown that the application of a 1 T field during the cooling of the sample also improves the magnetic properties. We believe that the large external field orients the magnetic spin structure at high temperatures (during growth or the initial stages of cool down) and that cooling through local magnetic ordering temperatures at Fe3O4 defect sites subsequently favours a ferromagnetic spin alignment. The control of magnetic properties of magnetite nanofilms by the application of magnetic fields during growth opens up new routes towards the fabrication and application of magnetic thin film devices. en
dc.format.extent 19
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Multidisciplinary Digital Publishing Institute (MDPI)
dc.relation.ispartofseries Nanomaterials en
dc.relation.ispartofseries Volume 8, issue 12 en
dc.rights openAccess en
dc.subject.other 221 Nanotechnology en
dc.title Deposition of Magnetite Nanofilms by Pulsed Injection MOCVD in a Magnetic Field en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Trinity College Dublin
dc.contributor.department Maxim Tank Belarusian State Pedagogical University
dc.contributor.department St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
dc.contributor.department Department of Applied Physics
dc.contributor.department Department of Applied Physics en
dc.subject.keyword magnetic nanofilms
dc.subject.keyword magnetite
dc.subject.keyword MOCVD
dc.subject.keyword growth in magnetic field
dc.subject.keyword FE3O4 THIN-FILMS
dc.subject.keyword VERWEY TRANSITION
dc.subject.keyword LASER DEPOSITION
dc.subject.keyword EPITAXIAL-FILMS
dc.subject.keyword DOPED FE3O4
dc.subject.keyword RAMAN
dc.subject.keyword MAGNETORESISTANCE
dc.subject.keyword BEHAVIOR
dc.subject.keyword GROWTH
dc.subject.keyword ENHANCEMENT
dc.subject.keyword 221 Nanotechnology
dc.identifier.urn URN:NBN:fi:aalto-201902252025
dc.identifier.doi 10.3390/nano8121064
dc.type.version publishedVersion

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