Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1544727 | Physica E: Low-dimensional Systems and Nanostructures | 2014 | 7 Pages |
Abstract
We investigate interference of Majorana fermions (MFs) in NS junctions. A general formula of charge conductance G for NS junctions with two MFs is derived based on the low energy effective model. It is found that G for two MFs takes various values 0≤G≤4e2/h0≤G≤4e2/h owing to interference of the MFs, while G is quantized as G=2e2/hG=2e2/h for a single MF. The value of G is determined by symmetry of the system. As an example, we investigate the complete destructive interference of two degenerate MFs reported by Ii et al. [A. Ii, A. Yamakage, K. Yada, M. Sato, Y. Tanaka, Physical Review B 86 (2012) 174512.], and identify the symmetry responsible for the destructive interference.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Ai Yamakage, Masatoshi Sato,