Speaker
Annica Black-Schaffer
(Uppsala University)
Description
Magnetism and superconductivity are two of the most prominent quantum phases of matter, typically exhibiting a competing, “friend–foe” relationship. Their interplay in altermagnets, however, opens a route to qualitatively new phenomena.
In this talk, I will present several effects that arise when superconductivity emerges in altermagnetic systems, including finite-momentum pairing, field-induced superconductivity, and a perfect superconducting diode effect. I will also discuss general constraints imposed by altermagnetism on the superconducting pairing symmetry. If time permits, I will further outline the possibility of orbital-selective altermagnetism in the unconventional superconductor Sr$_2$RuO$_4$.
Author
Annica Black-Schaffer
(Uppsala University)