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Majorana Fermion Induced Resonant Andreev Reflection
TLDR
In this article, the authors describe experimental signatures of Majorana fermion edge states, which form at the interface between a superconductor and the surface of a topological insulator.Abstract:
We describe experimental signatures of Majorana fermion edge states, which form at the interface between a superconductor and the surface of a topological insulator. If a lead couples to the Majorana fermions through electron tunneling, the Majorana fermions induce resonant Andreev reflections from the lead to the grounded superconductor. The linear tunneling conductance is 0 (2e(2)/h) if there is an even (odd) number of vortices in the superconductor. Similar resonance occurs for tunneling into the zero mode in the vortex core. We also study the current and noise of a two-lead device.read more
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References
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Journal ArticleDOI
Signatures of Majorana Fermions in Hybrid Superconductor-Semiconductor Nanowire Devices
Vincent Mourik,K. Zuo,Sergey Frolov,Sebastien Plissard,Epam Erik Bakkers,Epam Erik Bakkers,Leo P. Kouwenhoven +6 more
TL;DR: Electrical measurements on indium antimonide nanowires contacted with one normal (gold) and one superconducting (niobium titanium nitride) electrode support the hypothesis of Majorana fermions in Nanowires coupled to superconductors.
Journal ArticleDOI
New directions in the pursuit of Majorana fermions in solid state systems.
TL;DR: In this article, a review of recent advances in the condensed matter search for Majorana fermions is presented, which has led many in the field to believe that this quest may soon bear fruit.
Journal ArticleDOI
Topological Insulator Materials
TL;DR: Topological insulators represent a new quantum state of matter which is characterized by peculiar edge or surface states that show up due to a topological character of the bulk wave functions.
Journal ArticleDOI
Search for Majorana fermions in superconductors
TL;DR: In this article, a colloquium-style introduction to the midgap excitations in superconductors known as Majorana fermions is given, along with strategies to detect them in a topological superconductor, as well as possible applications in a quantum computer.
Journal ArticleDOI
The fractional a.c. Josephson effect in a semiconductor-superconductor nanowire as a signature of Majorana particles
TL;DR: The fractional alternating-current Josephson effect produces a series of steps in the current-voltage characteristics of a superconducting junction driven at radiofrequencies as discussed by the authors, which is observed in a semiconductor-superconductor nanowire.
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