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Quantum Ground State Control in Superconductor-Silicene Structures: 0-π transitions, φ₀-junctions, and Majorana bound states

Kuzmanovskii, Dushko; Linder, Jacob; Black-Schaffer, Annica
Journal article
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URI
http://hdl.handle.net/11250/2465111
Date
2016
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  • Publikasjoner fra CRIStin - NTNU [19961]
Original version
Physical Review B. Condensed Matter and Materials Physics. 2016, 94 (18), .   10.1103/PhysRevB.94.180505
Abstract
We demonstrate theoretically that proximity-induced superconductivity in silicene offers the possibility to exert strong quantum ground state control. We show that electrically controlled 0-π transitions occur in Josephson junctions in the presence of an exchange field due to the buckling of the silicene lattice. We also discover that zigzag-oriented interfaces, featuring intervalley scattering, cause a φ0 state with an applied electric field. Finally, we demonstrate that Majorana bound states along the silicene edge are tunable via the edge orientation, electric, and in-plane spin exchange fields.
Publisher
American Physical Society
Journal
Physical Review B. Condensed Matter and Materials Physics

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