Journal
SOLID STATE COMMUNICATIONS
Volume 262, Issue -, Pages 1-6Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2017.06.003
Keywords
Two-dimensional electron gas; Superconductors; Majorana bound states; Non -Abelian statistics; Magnetic textures; Magnetic tunnel junctions
Categories
Funding
- U.S. DOE, Office of Science BES [DE-SC0004890]
- ENB Graduate School on Topological Insulators
- NSF [DGE-1650441]
- Army Research Office
- National Science Foundation [DMR-1610416]
- Air Force Office of Scientific Research
- DFG [SCHA 1899/1-1, SFB 1170]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1610416] Funding Source: National Science Foundation
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A versatile control of magnetic systems, widely used to store information, can also enable manipulating Majorana bounds states (MBS) and implementing fault-tolerant quantum information processing. The proposed platform relies on the proximity-induced superconductivity in a two-dimensional electron gas placed next to an array of magnetic tunnel junctions (MTJs). A change in the magnetization configuration in the MTJ array creates tunable magnetic textures thereby removing several typical requirements for MBS: strong spin orbit coupling, applied magnetic field, and confinement by one-dimensional structures which complicates demonstrating non-Abelian statistics through braiding. Recent advances in fabricating two-dimensional epitaxial superconductor/semiconductor heterostructures and designing tunable magnetic textures support the feasibility of this novel platform for MBS.
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