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Nanoscale Spin Wave Localization Using Ferromagnetic Resonance Force Microscopy
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Engineering Material Physics.ORCID iD: 0000-0003-4889-4210
2012 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 108, no 8, 087206- p.Article in journal (Refereed) Published
Abstract [en]

We use the dipolar fields from a magnetic cantilever tip to generate localized spin wave precession modes in an in-plane magnetized, thin ferromagnetic film. Multiple resonances from a series of localized modes are detected by ferromagnetic resonance force microscopy and reproduced by micromagnetic models that also reveal highly anisotropic mode profiles. Modeled scans of line defects using the lowest-frequency mode provide resolution predictions of (94.5 +/- 1.5) nm in the field direction, and (390 +/- 2) nm perpendicular to the field.

Place, publisher, year, edition, pages
2012. Vol. 108, no 8, 087206- p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-92058DOI: 10.1103/PhysRevLett.108.087206ISI: 000300670300011ScopusID: 2-s2.0-84857621194OAI: diva2:512164
QC 20120326Available from: 2012-03-26 Created: 2012-03-26 Last updated: 2012-03-26Bibliographically approved

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Belova, Liubov M.
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