409 citations · 2.5k across the 46 of their papers we have counts for
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Link between supercurrent diode and anomalous Josephson effect revealed by gate-controlled interferometry
Simon Reinhardt, Tim Ascherl, Andreas Costa +9
In Josephson diodes the asymmetry between positive and negative current branch of the current-phase relation leads to a polarity-dependent critical current and Josephson inductance…
Swapping exchange and spin-orbit induced correlated phases in proximitized Bernal bilayer graphene
Yaroslav Zhumagulov, Denis Kochan, Jaroslav Fabian
Ex-so-tic van der Waals heterostructures take advantage of the electrically tunable layer polarization to swap proximity exchange and spin-orbit coupling in the electronically acti…
Dirac Landau levels for surfaces with constant negative curvature
Maximilian Fürst, Denis Kochan, Ioachim-Gheorghe Dusa +2
Studies of the formation of Landau levels based on the Schrödinger equation for electrons constrained to curved surfaces have a long history. These include as prime examples surfac…
Emergent correlated phases in rhombohedral trilayer graphene induced by proximity spin-orbit and exchange coupling
Yaroslav Zhumagulov, Denis Kochan, Jaroslav Fabian
The impact of proximity-induced spin-orbit and exchange coupling on the correlated phase diagram of rhombohedral trilayer graphene (RTG) is investigated theoretically. By employing…
Phenomenological Theory of the Supercurrent Diode Effect: The Lifshitz Invariant
Denis Kochan, Andreas Costa, Iaroslav Zhumagulov +1
Nonreciprocal phenomena in the normal state are well established and key to many commercial applications. In contrast, superconducting analogs, such as the superconducting diode ef…
Microscopic study of the Josephson supercurrent diode effect in Josephson junctions based on two-dimensional electron gas
Andreas Costa, Jaroslav Fabian, Denis Kochan
Superconducting systems that simultaneously lack space-inversion and time-reversal symmetries have recently been the subject of a flurry of experimental and theoretical research ac…