Advanced magneto-optical Kerr effect measurements of superconductors at low temperatures
Magneto-optical Kerr-effect (MOKE) measurements of superconducting films with soft-magnetic coatings are performed at low temperatures using a laser-based MOKE set-up. An elaborate measurement scheme with internal reference allows the quantitative comparison of the temperature dependent Kerr-amplitu...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2017-10-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4985044 |
| _version_ | 1818137725716398080 |
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| author | Claudia Stahl Joachim Gräfe Stephen Ruoß Patrick Zahn Jonas Bayer Julian Simmendinger Gisela Schütz Joachim Albrecht |
| author_facet | Claudia Stahl Joachim Gräfe Stephen Ruoß Patrick Zahn Jonas Bayer Julian Simmendinger Gisela Schütz Joachim Albrecht |
| author_sort | Claudia Stahl |
| collection | DOAJ |
| description | Magneto-optical Kerr-effect (MOKE) measurements of superconducting films with soft-magnetic coatings are performed at low temperatures using a laser-based MOKE set-up. An elaborate measurement scheme with internal reference allows the quantitative comparison of the temperature dependent Kerr-amplitude with the magnetic field generated by supercurrents. For this purpose, an amorphous CoFeB thin film exhibiting a large Kerr-signal is deposited directly on top of the YBCO superconductor acting as field sensing layer. It is shown that the resulting magnetic hysteresis loops of the soft-magnetic film can be used to reconstruct the electric properties of the superconductor. |
| first_indexed | 2024-12-11T10:00:52Z |
| format | Article |
| id | doaj.art-b9b16fd0c943427a8766fec1db4e38d3 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-11T10:00:52Z |
| publishDate | 2017-10-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-b9b16fd0c943427a8766fec1db4e38d32022-12-22T01:12:08ZengAIP Publishing LLCAIP Advances2158-32262017-10-01710105019105019-710.1063/1.4985044085710ADVAdvanced magneto-optical Kerr effect measurements of superconductors at low temperaturesClaudia Stahl0Joachim Gräfe1Stephen Ruoß2Patrick Zahn3Jonas Bayer4Julian Simmendinger5Gisela Schütz6Joachim Albrecht7Max Planck Institute for Intelligent Systems, Heisenbergstraße 3, D-70569 Stuttgart, GermanyMax Planck Institute for Intelligent Systems, Heisenbergstraße 3, D-70569 Stuttgart, GermanyMax Planck Institute for Intelligent Systems, Heisenbergstraße 3, D-70569 Stuttgart, GermanyMax Planck Institute for Intelligent Systems, Heisenbergstraße 3, D-70569 Stuttgart, GermanyMax Planck Institute for Intelligent Systems, Heisenbergstraße 3, D-70569 Stuttgart, GermanyMax Planck Institute for Intelligent Systems, Heisenbergstraße 3, D-70569 Stuttgart, GermanyMax Planck Institute for Intelligent Systems, Heisenbergstraße 3, D-70569 Stuttgart, GermanyResearch Institute for Innovative Surfaces, FINO, Aalen University, Beethovenstraße 1, D-73430 Aalen, GermanyMagneto-optical Kerr-effect (MOKE) measurements of superconducting films with soft-magnetic coatings are performed at low temperatures using a laser-based MOKE set-up. An elaborate measurement scheme with internal reference allows the quantitative comparison of the temperature dependent Kerr-amplitude with the magnetic field generated by supercurrents. For this purpose, an amorphous CoFeB thin film exhibiting a large Kerr-signal is deposited directly on top of the YBCO superconductor acting as field sensing layer. It is shown that the resulting magnetic hysteresis loops of the soft-magnetic film can be used to reconstruct the electric properties of the superconductor.http://dx.doi.org/10.1063/1.4985044 |
| spellingShingle | Claudia Stahl Joachim Gräfe Stephen Ruoß Patrick Zahn Jonas Bayer Julian Simmendinger Gisela Schütz Joachim Albrecht Advanced magneto-optical Kerr effect measurements of superconductors at low temperatures AIP Advances |
| title | Advanced magneto-optical Kerr effect measurements of superconductors at low temperatures |
| title_full | Advanced magneto-optical Kerr effect measurements of superconductors at low temperatures |
| title_fullStr | Advanced magneto-optical Kerr effect measurements of superconductors at low temperatures |
| title_full_unstemmed | Advanced magneto-optical Kerr effect measurements of superconductors at low temperatures |
| title_short | Advanced magneto-optical Kerr effect measurements of superconductors at low temperatures |
| title_sort | advanced magneto optical kerr effect measurements of superconductors at low temperatures |
| url | http://dx.doi.org/10.1063/1.4985044 |
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