Evgenii Antropov, Mikhail S. Kalenkov, Jan Kehrle, Vladimir Zdravkov, Roman Morari, Alexei Socrovisciuc, Siegfried Horn, Lenar Tagirov, Andrei D. Zaikin, Anatoli Sidorenko, Horst Hahn, Reinhard Tidecks
The upper critical magnetic field H_{c2} in thin-film FSF trilayers is studied experimentally and theoretically in geometries perpendicular and parallel to the heterostructure surface. The series of samples with variable thicknesses of the F-layers are prepared in a single run utilizing the wedge deposition technique. The critical field H_{c2} is measured in the temperature range 1.5-10K and for magnetic fields up to 9 Tesla. In order to properly interpret the experimental data we develop a quasiclassical theory enabling one to evaluate the temperature dependence of the critical field for an arbitrary set of the system parameters. A good agreement between our experimental data and theoretical predictions is demonstrated for all samples using a single set of fit parameters
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http://arxiv.org/abs/1302.0644
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