The role of individual defects on the magnetic screening of HTSC films

The magnetic flux penetration into thin films of high-temperature superconducting YBCO is visualized with high spatial resolution via x-ray microscopy. Therefore superconductors are coated with soft-magnetic CoFeB layers that reproduce the magnetic flux density distribution in an adjacent supercondu...

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Bibliographic Details
Published inNew journal of physics Vol. 18; no. 10; pp. 103044 - 103050
Main Authors Ruoß, Stephen, Stahl, Claudia, Weigand, Markus, Zahn, Patrick, Bayer, Jonas, Schütz, Gisela, Albrecht, Joachim
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 24.10.2016
Subjects
Defects
Density distribution
ferromagnet
Flux density
High temperature
Magnetic flux
Magnetism
Microscopy
Physics
Screening
Spatial resolution
Superconductivity
superconductor
Thin films
X ray microscopy
X-rays
XMCD
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Summary:The magnetic flux penetration into thin films of high-temperature superconducting YBCO is visualized with high spatial resolution via x-ray microscopy. Therefore superconductors are coated with soft-magnetic CoFeB layers that reproduce the magnetic flux density distribution in an adjacent superconducting film and exhibit at the same time a large XMCD effect. For the first time we present scanning x-ray microscopy in the total electron yield mode using polarized x-rays providing simultaneously structural and magnetic information of the surface with high spatial resolution. Correlating the images of structural and magnetic information the role of individual defects on the magnetic screening capability of the superconductor can be identified.
Bibliography:NJP-105268.R1
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/18/10/103044