Abstract
The magnetic flux periodicity of hc2e is a well-known manifestation of Cooper pairing in typical s-wave superconductors. In this paper we theoretically show that the flux periodicity of a two-dimensional second order topological superconductor, which features zero-energy Majorana modes localized at the corners of the sample, is hce instead. We further show that the periodicity changes back to hc2e at the transition to a topologically trivial superconductor, where the Majorana modes hybridize with the bulk states, demonstrating that the doubling of periodicity is a manifestation of the nontrivial topology of the state.
| Original language | English |
|---|---|
| Article number | 125429 |
| Journal | Physical Review B |
| Volume | 101 |
| Issue number | 12 |
| DOIs | |
| State | Published - 15 Mar 2020 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 American Physical Society.
Funding
U.K. was supported by the Raymond and Beverly Sackler Faculty of Exact Sciences at Tel Aviv University and the Raymond and Beverly Sackler Center for Computational Molecular and Material Science. We thank A. Agarwala, S. Kadge, G. Murthy, B. Rosenow, and Y. Gefen for useful discussions.
| Funders | Funder number |
|---|---|
| Tel Aviv University |