Abstract:
The main goal of our research group is the elaboration of superconducting spin-switch (valve)
based on Ferromagnetic/Superconductor/Ferromagnetic core. We could realize all building blocks necessary
for the fabrication of the core structure of the superconducting spin valve, consisting of two mirror
symmetric bilayers [4]. In other words, the spin valve consists of a F/Š/F trilayer, which can be regarded as a
package of a F/S and S/F bilayer so that Š=2S in the trilayer [16, 17]. For such a trilayer, the theory [4]
predicts that the critical temperature depends on the relative orientation of the magnetization of the
ferromagnetic layers. To enable a reversal of one of the magnetizations of the layers with respect to the other
by an external magnetic field, the coercive forces of the F layers have to be different due to either intrinsic
properties or to an antiferromagnetic pinning layer delivering an exchange bias. The main points of our study
are presented here.