Internal magnetic structure of magnetite nanoparticles at low temperature

Title:
Internal magnetic structure of magnetite nanoparticles at low temperature
Authors:
Krycka, K. L.; Borchers, Julie A.; Booth, R. A.; Hogg, C. R.; Ijiri, Y.; Chen, W. C.; Watson, S. M.; Laver, M.; Gentile, T. R.; Harris, S.; Dedon, Liv R.; Rhyne, J. J.; Majetich, S. A.
Abstract:
Small-angle neutron scattering with polarization analysis reveals that Fe3O4 nanoparticles with 90 Å diameters have ferrimagnetic moments significantly reduced from that of bulk Fe3O4 at 10 K, nominal saturation. Combined with previous results for an equivalent applied field at 200 K, a core-disordered shell picture of a spatially reduced ferrimagnetic core emerges, even well below the bulk blocking temperature. Zero-field cooling suggests that this magnetic morphology may be intrinsic to the nanoparticle, rather than field induced, at 10 K.
Citation:
Krycka, K.L., J.A. Borchers, R.A. Booth, et al. 2010. "Internal magnetic structure of magnetite nanoparticles at low temperature." Journal of Applied Physics 107: 09B525.
Publisher:
American Institute of Physics
DATE ISSUED:
2010
Department:
Physics and Astronomy
Type:
article
PUBLISHED VERSION:
10.1063/1.3358049
PERMANENT LINK:
http://hdl.handle.net/11282/309879

Full metadata record

DC FieldValue Language
dc.contributor.authorKrycka, K. L.en_US
dc.contributor.authorBorchers, Julie A.en_US
dc.contributor.authorBooth, R. A.en_US
dc.contributor.authorHogg, C. R.en_US
dc.contributor.authorIjiri, Y.en_US
dc.contributor.authorChen, W. C.en_US
dc.contributor.authorWatson, S. M.en_US
dc.contributor.authorLaver, M.en_US
dc.contributor.authorGentile, T. R.en_US
dc.contributor.authorHarris, S.en_US
dc.contributor.authorDedon, Liv R.en_US
dc.contributor.authorRhyne, J. J.en_US
dc.contributor.authorMajetich, S. A.en_US
dc.date.accessioned2013-12-23T16:20:07Z-
dc.date.available2013-12-23T16:20:07Z-
dc.date.issued2010en
dc.identifier.citationKrycka, K.L., J.A. Borchers, R.A. Booth, et al. 2010. "Internal magnetic structure of magnetite nanoparticles at low temperature." Journal of Applied Physics 107: 09B525.en_US
dc.identifier.issn0021-8979en_US
dc.identifier.urihttp://hdl.handle.net/11282/309879-
dc.description.abstractSmall-angle neutron scattering with polarization analysis reveals that Fe3O4 nanoparticles with 90 Å diameters have ferrimagnetic moments significantly reduced from that of bulk Fe3O4 at 10 K, nominal saturation. Combined with previous results for an equivalent applied field at 200 K, a core-disordered shell picture of a spatially reduced ferrimagnetic core emerges, even well below the bulk blocking temperature. Zero-field cooling suggests that this magnetic morphology may be intrinsic to the nanoparticle, rather than field induced, at 10 K.en_US
dc.language.isoen_USen_US
dc.publisherAmerican Institute of Physicsen_US
dc.identifier.doi10.1063/1.3358049-
dc.subject.departmentPhysics and Astronomyen_US
dc.titleInternal magnetic structure of magnetite nanoparticles at low temperatureen_US
dc.typearticleen_US
dc.identifier.journalJournal of Applied Physicsen_US
dc.subject.keywordMagnetic nanoparticlesen_US
dc.subject.keywordPolarized neutron scatteringen_US
dc.identifier.volume107en_US
dc.identifier.issue09B525en_US
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