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Journal Article

Topological superconductivity in proximity to type-II superconductors

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Nikolaenko,  Alexander
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Pientka,  Falko
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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2009.14221.pdf
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Citation

Nikolaenko, A., & Pientka, F. (2021). Topological superconductivity in proximity to type-II superconductors. Physical Review B, 103(13): 134503. doi:10.1103/PhysRevB.103.134503.


Cite as: https://hdl.handle.net/21.11116/0000-0008-A600-C
Abstract
One-dimensional systems proximity coupled to a superconductor can be driven into a topological superconducting phase by an external magnetic field. Here, we investigate the effect of vortices created by the magnetic field in a type-II superconductor providing the proximity effect. We identify different ways in which the topological protection of Majorana modes can be compromised and discuss strategies to circumvent these detrimental effects. Our findings are also relevant to topological phases of proximitized quantum Hall edge states.