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Tunable second harmornic in altermagnetic Josephson junctions
Hai-Peng Sun, Song-Bo Zhang, Chang-An Li +1
We study the influence of external electric and Zeeman fields on the Josephson effect in a planar superconductor/altermagnet/superconductor junction. Remarkably, we find that the c…
Transition between scattering regimes of 2D electron transport
Philipp Heilmann, Pavlo V. Pyshkin, Björn Trauzettel
We examine 2D electron transport through a long narrow channel driven by an external electric field in presence of diffusive boundary scattering. At zero temperature, we derive an…
AC Josephson Signatures of the Superconducting Higgs Mode
Aritra Lahiri, Sang-Jun Choi, Björn Trauzettel
The Higgs mode in superconductors corresponds to oscillations of the amplitude of the order parameter. While its detection typically entails resonant optical excitation, we present…