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Some observations on polarized neutron reflectivity in applied fields
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science.
2008 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 20, no 295216Article in journal (Refereed) Published
Abstract [en]

Unpolarized neutron reflectivity measurements on FeCo/Pt and Fe/Co superlattices have revealed a number of interesting features when a relatively large field was applied normal to the samples' surface. Some of the features, which include oscillations and Yoneda scattering below the critical edge, can be understood by calculating the polarization-dependent reflectivities and transmissions of the samples. Measurements with polarization analysis, however, show that the Zeeman-split reflected beams, expected in reflectivity experiments in an applied magnetic field, do not appear to have a unique spin state. The interpretation of the data is believed to lie in a non-collinearity between the axis for the reflected neutron beam polarization and the axis for the polarization analysis.

Place, publisher, year, edition, pages
2008. Vol. 20, no 295216
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-101216DOI: 10.1088/0953-8984/20/29/295216ISI: 000257325900036OAI: oai:DiVA.org:uu-101216DiVA: diva2:212083
Note
Conference Information: CECAM Workshop on Linear-Scaling AB Initio Calculation - Applications and Future Directions Lyon, FRANCE, SEP 03-06, 2007 Available from: 2009-04-21 Created: 2009-04-21 Last updated: 2017-12-13

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Björck, MattsAndersson, Gabriella

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