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  Inhomogeneous vortex distribution and magnetic coupling in oxide superconductor-ferromagnet hybrids

Albrecht, J., Djupmyr, M., Soltan, S., Habermeier, H.-U., Connolly, M. R., & Bending, S. J. (2007). Inhomogeneous vortex distribution and magnetic coupling in oxide superconductor-ferromagnet hybrids. New Journal of Physics, 9: 379.

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Albrecht, J.1, Author           
Djupmyr, M., Author
Soltan, S.1, 2, Author           
Habermeier, H.-U.1, 2, 3, Author           
Connolly, M. R., Author
Bending, S. J.4, Author           
Affiliations:
1Scientific Facility Thin Film Technology (Gennady Logvenov), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370497              
2Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370480              
3Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370483              
4Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370504              

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 Abstract: Hybrid systems of thin films of oxide ferromagnets and high-temperature superconductors have been investigated by scanning Hall probe microscopy (SHPM) to analyze the local magnetic flux density distribution at low temperatures. In addition to the intrinsic properties of the films themselves, such structures exhibit novel phenomena due to complex interactions arising at the interface between them. The latter can be divided into processes originating from either electronic or magnetic coupling, respectively. As a direct consequence, the distribution of vortices in the superconductor is strongly influenced by the magnetic background arising from the ferromagnet. The local magnetic information obtained from SHPM images provides clear evidence for the presence of a magnetic dipolar interaction between the magnetic domains of the ferromagnetic component and the vortex ensemble in the superconductor.

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Language(s): eng - English
 Dates: 2007
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 338824
ISI: 000250599400003
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Title: New Journal of Physics
Source Genre: Journal
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Pages: - Volume / Issue: 9 Sequence Number: 379 Start / End Page: - Identifier: ISSN: 1367-2630