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Condensed Matter Seminars
| Condensed Matter
Thursday, January 29, 2004
Physics Building, Room 204
Note special time.
Note special room.
[Host: Jongsoo Yoon]
Argonne National Laboratory
"Playing with Superconductivity and Magnetism in Nanoscale"
Recent technological advances made it possible to create hybrid
nano-structures with high quality ferromagnet/superconductor (F/S)
interfaces. The F/S systems have been in focus of intensive experimental and
theoretical studies because of both exciting fundamental problems and
potential device applications. The physical properties of both F and S films
will be strongly modified near the interface due to mutual proximity effect,
for example, superconducting correlations penetrate into F and the spin
polarization can extend into S. Main questions to be addressed in this talk
will be the type and length scale of the induced superconducting
correlations and spin relaxation length at the interface. Also, first
experimental observation of superconducting switching effect depending on
the mutual magnetization directions of F-layers in F/S/F trilayer system
will be discussed.
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