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Quantitative x-ray magnetic circular dichroism mapping with high spatial resolution full-field magnetic transmission soft x-ray spectro-microscopy

Title
Quantitative x-ray magnetic circular dichroism mapping with high spatial resolution full-field magnetic transmission soft x-ray spectro-microscopy
Authors
Robertson, MJ[Robertson, MacCallum J.]Agostino, CJ[Agostino, Christopher J.]N'Diaye, AT[N'Diaye, Alpha T.]Chen, G[Chen, Gong]Im, MY[Im, Mi-Young]Fischer, P[Fischer, Peter]
DGIST Authors
Im, MY[Im, Mi-Young]
Issue Date
2015-05-07
Citation
Journal of Applied Physics, 117(17)
Type
Article
Article Type
Article
Keywords
Characterization ToolsCobaltDichroismDomain WallsHigh Spatial ResolutionImage ResolutionLocal DistributionsMagnetic AnisotropyMagnetic DomainsMagnetic MomentsMagnetic StorageMagnetic TransmissionsMagnetismMappingPerpendicular Magnetic AnisotropySoft X-Ray MicroscopySpectroscopic AnalysisSpectroscopySpin ConfigurationsThin-FilmsX-Ray Magnetic Circular DichroismX Ray Microscopes
ISSN
0021-8979
Abstract
The spectroscopic analysis of X-ray magnetic circular dichroism (XMCD), which serves as strong and element-specific magnetic contrast in full-field magnetic transmission soft x-ray microscopy, is shown to provide information on the local distribution of spin (S) and orbital (L) magnetic moments down to a spatial resolution of 25 nm limited by the x-ray optics used in the x-ray microscope. The spatially resolved L/S ratio observed in a multilayered (Co 0.3 nm/Pt 0.5 nm) × 30 thin film exhibiting a strong perpendicular magnetic anisotropy decreases significantly in the vicinity of domain walls, indicating a non-uniform spin configuration in the vertical profile of a domain wall across the thin film. Quantitative XMCD mapping with x-ray spectro-microscopy will become an important characterization tool for systems with topological or engineered magnetization inhomogeneities. © 2015 AIP Publishing LLC.
URI
http://hdl.handle.net/20.500.11750/2900
DOI
10.1063/1.4918691
Publisher
American Institute of Physics Publishing
Files:
There are no files associated with this item.
Collection:
Emerging Materials ScienceETC1. Journal Articles


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