| Full text | |
| Author(s): |
Manesco, Antonio L. R.
;
Fler, Ian Matthias
;
Liu, Chun-Xiao
;
Akhmerov, Anton R.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | SCIPOST PHYSICS CORE; v. 5, n. 3, p. 16-pg., 2022-07-01. |
| Abstract | |
We simulate a hybrid superconductor-graphene device in the quantum Hall regime to identify the origin of downstream resistance oscillations in a recent experiment [Zhao et al. Nature Physics 16, (2020)]. In addition to the previously studied Mach-Zehnder interference between the valley-polarized edge states, we consider disorder-induced scattering, and the appearance of the counter-propagating states generated by the interface density mismatch. Comparing our results with the experiment, we conclude that the observed oscillations are induced by the interfacial disorder, and that lattice -matched superconductors are necessary to observe the alternative ballistic effects. (AU) | |
| FAPESP's process: | 19/07082-9 - Physics of graphene/superconductor junctions |
| Grantee: | Antonio Lucas Rigotti Manesco |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate (Direct) |
| FAPESP's process: | 16/10167-8 - Investigation of electronic and topological properties of superconductor-graphene heterojunctions for applications in quantum computation devices |
| Grantee: | Antonio Lucas Rigotti Manesco |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |