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Anatomy of Spin and Current Generation from Magnetization Gradients in Topological Insulators and Rashba Metals
Panagiotis Kotetes, Hano O. M. Sura, Brian M. Andersen
We explore the spin density and charge currents arising on the surface of a topological insulator and in a 2D Rashba metal due to magnetization gradients. For topological insulator…
Trapping Majorana Zero Modes in Vortices of Magnetic Texture Crystals Coupled to Nodal Superconductors
Daniel Steffensen, Brian M. Andersen, Panagiotis Kotetes
We propose a mechanism for opening a full bulk energy gap and inducing vortex Majorana zero modes (MZMs) in nodal superconductors (SCs). We show that this becomes possible by coupl…
Kondo-Enhanced Andreev Tunneling in InAs Nanowire Quantum Dots
T. Sand-Jespersen, J. Paaske, B. M. Andersen +7
We report measurements of the nonlinear conductance of InAs nanowire quantum dots coupled to superconducting leads. We observe a clear alternation between odd and even occupation o…