Origin of Surface Canting within Fe3O4 Nanoparticles

Title:
Origin of Surface Canting within Fe3O4 Nanoparticles
Authors:
Krycka, K. L.; Borchers, Julie A.; Booth, R. A.; Ijiri, Yumi; Hasz, K.; Rhyne, J. J.; Majetich, S. A.
Abstract:
The nature of near-surface spin canting within Fe3O4 nanoparticles is highly debated. Here we develop a neutron scattering asymmetry analysis which quantifies the canting angle to between 23° and 42° at 1.2 T. Simultaneously, an energy-balance model is presented which reproduces the experimentally observed evolution of shell thickness and canting angle between 10 and 300 K. The model is based on the concept of Td site reorientation and indicates that surface canting involves competition between magnetocrystalline, dipolar, exchange, and Zeeman energies.
Citation:
Krycka, K.L., J.A. Borchers, R.A. Booth, Y. Ijiri, K. Hasz, J.J. Rhyne, and S.A. Majetich, “Origin of Surface Canting Within Fe3O4 Nanoparticles.” Physical Review Letters 113: 147203.
Publisher:
American Physical Society
DATE ISSUED:
2014-10-02
Department:
Physics and Astronomy
Type:
Article
PUBLISHED VERSION:
10.1103/PhysRevLett.113.147203
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevLett.113.147203
PERMANENT LINK:
http://hdl.handle.net/11282/335777

Full metadata record

DC FieldValue Language
dc.contributor.authorKrycka, K. L.en
dc.contributor.authorBorchers, Julie A.en
dc.contributor.authorBooth, R. A.en
dc.contributor.authorIjiri, Yumien
dc.contributor.authorHasz, K.en
dc.contributor.authorRhyne, J. J.en
dc.contributor.authorMajetich, S. A.en
dc.date.accessioned2014-11-18T15:35:43Zen
dc.date.available2014-11-18T15:35:43Zen
dc.date.issued2014-10-02en
dc.identifier.citationKrycka, K.L., J.A. Borchers, R.A. Booth, Y. Ijiri, K. Hasz, J.J. Rhyne, and S.A. Majetich, “Origin of Surface Canting Within Fe3O4 Nanoparticles.” Physical Review Letters 113: 147203.en
dc.identifier.issn0031-9007en
dc.identifier.urihttp://hdl.handle.net/11282/335777en
dc.description.abstractThe nature of near-surface spin canting within Fe3O4 nanoparticles is highly debated. Here we develop a neutron scattering asymmetry analysis which quantifies the canting angle to between 23° and 42° at 1.2 T. Simultaneously, an energy-balance model is presented which reproduces the experimentally observed evolution of shell thickness and canting angle between 10 and 300 K. The model is based on the concept of Td site reorientation and indicates that surface canting involves competition between magnetocrystalline, dipolar, exchange, and Zeeman energies.en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.identifier.doi10.1103/PhysRevLett.113.147203en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevLett.113.147203en
dc.subject.departmentPhysics and Astronomyen_US
dc.titleOrigin of Surface Canting within Fe3O4 Nanoparticlesen_US
dc.typeArticleen
dc.identifier.journalPhysical Review Lettersen
dc.subject.keywordAngle neutron-scatteringen_US
dc.subject.keywordPolarized neutronsen_US
dc.subject.keywordMagnetiteen_US
dc.subject.keywordSeparationen_US
dc.subject.keywordAnisotropyen_US
dc.subject.keywordMagnetic nanoparticlesen_US
dc.identifier.volume113en_US
dc.identifier.startpage147203en_US
dc.rightsArchived with thanks to Physical Review Lettersen
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