Quantitative study of magnetic field distribution by electron holography and micromagnetic simulations

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DOIResolve DOI: http://doi.org/10.1063/1.1603355
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TypeArticle
Journal titleApplied Physics Letters
Volume83
Issue7
Pages14351437; # of pages: 3
Subjectelectron holography; ferromagnetic materials; magnetic fields; magnetic structure; micromagnetics; Permalloy
AbstractThe magnetic configuration of a submicrometer Ni88Fe12 permalloy island has been quantitatively mapped by off-axis electron holography. The two main contributions to the electron-optical phase shift, namely the phase shifts induced by the electrostatic and magnetic potentials, including fringing fields, were separated by inverting the specimen of 180� with respect to the electron beam and directly measuring the mean inner potential. A quantitative map of the projected magnetic induction in the sample was thereby retrieved and compared to results of micromagnetic and electromagnetic calculations, providing the minimum-energy configuration and the phase shift, respectively.
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LanguageEnglish
Peer reviewedYes
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NPARC number12329217
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Record identifierfa28baff-28f7-478d-a50a-68d5db6758d3
Record created2009-09-10
Record modified2016-05-09
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