Abstract
We investigate the bulk orbital angular momentum in a two-dimensional time-reversal broken topological superconductor with the Rashba spin-orbit interaction, the Zeeman interaction, and the -wave pairing potential. Prior to the topological phase transition, we find the crossover from wave to wave. For the large spin-orbit interaction, even in the topological phase, does not reach , which is the intrinsic value in chiral -wave superconductors. Here and are the bulk orbital angular momentum and the total number of electrons at zero temperature, respectively. Finally, we discuss the effects of nonmagnetic impurities.
- Received 27 January 2015
- Revised 25 April 2015
DOI:https://doi.org/10.1103/PhysRevB.92.024502
©2015 American Physical Society