Speaker
Description
The field of superconducting spintronics has recently evolved from a focus on the interplay of superconductivity with ferromagnetism and various types of spin-orbit coupling, to include also unconventional types of magnetism such as altermagnetism and p-wave magnetism. Like spin-orbit coupling, these unconventional magnets have a momentum-dependent spin-splitting that vanishes after averaging over the Fermi surface. However, unlike spin-orbit coupling, the underlying mechanisms break time-reversal symmetry. As discussed in this talk, this difference leads to qualitatively different transport responses in hybrid structures, both in equilibrium and out-of-equilibrium. To show this, first the transport equations for unconventional magnets with superconductivity are discussed, including the influence of the spin-dependent diffusion constant on Cooper pairs and an unconventional Larmor precession. Then, several effects are presented that are unique to hybrid systems with superconductivity and unconventional magnetism, and they are compared with effects that appear due to the interplay of superconductivity with spin-orbit coupling. With this we provide predictions for transport signatures of altermagnetism and p-wave magnetism.