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Platform for controllable Majorana zero modes using superconductor/ferromagnet heterostructures
Giorgos Livanas, Nikos Vanas, Manfred Sigrist +1
We propose a novel platform for the creation and manipulation of Majorana zero modes consisting of a ferromagnetic metallic wire placed between conventional superconductors which a…
Symmetry conditions for the superconducting diode effect in chiral superconductors
Bastian Zinkl, Keita Hamamoto, Manfred Sigrist
We analyze the presence of non-reciprocal critical currents, the so-called superconducting diode effect, in chiral superconductors within a generalized Ginzburg-Landau framework. A…
Probing three-state Potts nematic fluctuations by ultrasound attenuation
Kazuhiro Kimura, Manfred Sigrist, Norio Kawakami
Motivated by recent studies of three-state Potts nematic states in magic-angle twisted bilayer graphene and doped-BiSe, we analyze the impact of critical nematic fluctuatio…
Role of Topology and Symmetry for the Edge Currents of a 2D Superconductor
Maximilian F. Holst, Manfred Sigrist, Mark H. Fischer
The bulk-boundary correspondence guarantees topologically protected edge states in a two-dimensional topological superconductor. Unlike in topological insulators, these edge states…
Non-unitary multiorbital superconductivity from competing interactions in Dirac materials
Tobias M. R. Wolf, Maximilian F. Holst, Manfred Sigrist +1
Unconventional superconductors represent one of the most intriguing quantum states of matter. In particular, multiorbital systems have the potential to host exotic non-unitary supe…
Magnetoelectric torque and edge currents caused by spin-orbit coupling
Wei Chen, Manfred Sigrist
Using a tight-biding model, we elaborate that the previously discovered out-of-plane polarized helical edge spin current caused by Rashba spin-orbit coupling can be attributed to t…