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Spin and orbital moments in Fe3O4
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Duffy, J. A., Taylor, J. W., Dugdale, S. B., Shenton-Taylor, C., Butchers, M. W., Giblin, S. R., Cooper, Malcolm, Sakurai, Y. and Itou, M. (2010) Spin and orbital moments in Fe3O4. Physical Review B (Condensed Matter and Materials Physics), Vol.81 (No.13). Article: 134424 . doi:10.1103/PhysRevB.81.134424 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.81.134424
Abstract
We report a study of the spin moment in Fe3O4 as a function of temperature using spin-dependent Compton scattering. Magnetic Compton profiles and spin moment values were obtained either side of the Verwey transition for applied magnetic fields of 2.5 and 7 T. The orbital moments, determined by comparison with bulk magnetometry, are almost fully quenched. No evidence of any anomalies in the spin or orbital moments at the Verwey transition was observed. The magnetic Compton profiles have the characteristic shape for Fe 3d electrons at all temperatures with no changes in the degree of anisotropy across the Verwey transition. Our data are consistent with the highly spin-polarized electronic structure expected for bulk Fe3O4.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1098-0121 | ||||
| Official Date: | 1 April 2010 | ||||
| Dates: |
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| Volume: | Vol.81 | ||||
| Number: | No.13 | ||||
| Number of Pages: | 5 | ||||
| Page Range: | Article: 134424 | ||||
| DOI: | 10.1103/PhysRevB.81.134424 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), ESRF | ||||
| Grant number: | GR/S44211, EP/F021518 (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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