Manfred Sigrist

Apr 22, 2024 | link.aps.org | Andras Szabo |Mark Fischer |Manfred Sigrist

Recent experiments observed a phase transition within the superconducting regime of the heavy-fermion system CeRh2As2 when subjected to a c-axis magnetic field. This phase transition has been interpreted as a parity switching from even to odd parity as the field is increased, and is believed to be of first order. If correct, this scenario provides a unique opportunity to study the phenomenon of local nucleation around inhomogeneities in a superconducting context.

Jan 9, 2024 | nature.com | Shuichi Iwakiri |Elías Portolés |Giulia Zheng |Takashi Taniguchi |Kenji Watanabe |Manfred Sigrist | +2 more

AbstractMagic-angle twisted bilayer graphene can host a variety of gate-tunable correlated states – including superconducting and correlated insulator states. Recently, junction-based superconducting moiré devices have been introduced, enabling the study of the charge, spin and orbital nature of superconductivity, as well as the coherence of moiré electrons in magic-angle twisted bilayer graphene.