Increase in the Critical Temperature of the Superconducting Transition of a Hybrid Structure upon the Magnetization of Spiral Antiferromagnets

Abstract

The spin-valve effect in superconductor hybrid structures based on magnetic materials with a noncollinear magnetic ordering is described theoretically. It is shown that the following effect is possible in such structures: when the sample is magnetized, the critical temperature of the superconducting transition increases. The origin is the suppression of long-range triplet superconducting correlations. Such structures can be used as newtype memory elements for superconducting spintronics.