2009/07/21 by K. T. Law, Patrick A. Lee, T. K. Ng · 1 citation
Physics and Astronomy · #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.103.237001
published as Phys. Rev. Lett. 103, 237001 (2009) · 4 pages, 3 figures. Discussion on STM tunneling into the Majorana zero mode in the vortex core is added
arxiv created 2009/07/21 · arxiv updated 2013/05/29
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 (2 e2/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.