Majorana Fermions in Proximity-coupled Topological Insulator Nanowires

Details Majorana Fermions in Proximity-coupled Topological Insulator Nanowires Majorana Fermions in Proximity-coupled Topological Insulator Nanowires

2011-05-09

arxiv.org/abs/1105.1787v2

Phys. Rev. B 84, 201105(R) (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages + 4 figures. v2 to appear in PRB/RC. For related work and info visit http://www.physics.ubc.ca/~franz/

Scientific paper

10.1103/PhysRevB.84.201105

A topological insulator nanowire, proximity-coupled to an ordinary bulk s-wave superconductor and subject to a longitudinal applied magnetic field, is shown to realize a one-dimensional topological superconductor with unpaired Majorana fermions localized at both ends. This situation occurs under a wide range of conditions and constitutes what is possibly the most easily accessible physical realization of the elusive Majorana particles in a solid-state system.

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