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4 November 2016 Epitaxial superconductor-semiconductor two-dimensional systems: platforms for quantum circuits (Conference Presentation)
Javad Shabani
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Proceedings Volume 9931, Spintronics IX; 99313X (2016) https://doi.org/10.1117/12.2239054
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States
Abstract
Theory suggests that the interface between a one-dimensional semiconductor (Sm) with strong spin-orbit coupling and a superconductor (S) hosts Majorana modes with nontrivial topological properties. A key challenge in fabrication of such hybrid devices is forming highly transparent contacts between the active electrons in the semiconductor and the superconducting metal. Recently, it has been shown that a near perfect interface and a highly transparent contact can be achieved using epitaxial growth of aluminum on InAs nanowires. In this work, we present the first two-dimensional epitaxial superconductor-semiconductor material system that can serve as a platform for topological superconductivity. We show that our material system, Al-InAs, satisfies all the requirements necessary to reach into the topological superconducting regime by individual characterization of the semiconductor two dimensional electron system, superconductivity of Al and performance of S-Sm-S junctions. This exciting development might lead to a number of useful applications ranging from spintronics to quantum computing.
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Javad Shabani "Epitaxial superconductor-semiconductor two-dimensional systems: platforms for quantum circuits (Conference Presentation)", Proc. SPIE 9931, Spintronics IX, 99313X (4 November 2016); https://doi.org/10.1117/12.2239054
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KEYWORDS
Semiconductors
Superconductors
Aluminum
Electrons
Interfaces
Quantum circuits
Superconductivity
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