Costa, Andreas and Fabian, Jaroslav and Kochan, Denis (2018) Connection between zero-energy Yu-Shiba-Rusinov states and 0-pi transitions in magnetic Josephson junctions. PHYSICAL REVIEW B, 98 (13): 134511. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
We study theoretically the bound state spectrum and 0-pi transitions in ballistic quasi-one-dimensional superconductor/ferromagnetic insulator/superconductor Josephson junctions. In addition to the Andreev bound states, stemming from the phase coherence, the magnetic barrier gives rise to qualitatively different Yu-ShibaRusinov (YSR) bound states with genuine spectral features and spin characteristics. We show that zero-energy YSR states are much more robust against the presence of scalar tunneling than their Andreev counterparts and also fingerprint a quantum phase transition from the junctions' 0 into the pi phase, connected to a measurable reversal of the Josephson current; this evidence persists also in the presence of Rashba spin-orbit coupling.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ANDREEV BOUND-STATES; MAJORANA FERMIONS; FERROMAGNET; SUPERCONDUCTIVITY; IMPURITY; SPECTROSCOPY; NANOWIRE; BARRIER; PHASE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 Dec 2019 13:04 |
| Last Modified: | 04 Dec 2019 13:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/13675 |
Actions (login required)
 |
View Item |
