On-Chip Andreev Devices: Hard Superconducting Gap and Quantum Transport in Ballistic Nb–In0.75Ga0.25AsQuantum-Well–Nb Josephson Junctions
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Peer-reviewed
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Abstract
A superconducting hard gap in hybrid superconductor–semiconductor devices has been found to be necessary to access topological superconductivity that hosts Majorana modes (non-Abelian excitation). This requires the formation of homogeneous and barrier-free interfaces between the superconductor and semiconductor. Here, a new platform is reported for topological superconductivity based on hybrid Nb–In
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1521-4095
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EPSRC (EP/M009505/1)
Engineering and Physical Sciences Research Council (EP/J017671/1)
Engineering and Physical Sciences Research Council (EP/M009505/1)