Anomalous inverse proximity effect in unconventional-superconductor junctions
arXiv:2012.05455 · doi:10.1103/PhysRevResearch.3.043148
Abstract
We investigate the effects of Andreev bound states due to the unconventional pairing on the inverse proximity effect of ferromagnet/superconductor junctions. Utilizing quasiclassical Eilenberger theory, we obtain the magnetization penetrating into the superconductor. We show that in a wide parameter range the direction of the induced magnetization is determined by two factors: whether Andreev bound states are present at the junction interface and the sign of the spin-mixing angle. In particular, when Andreev bound states appear at the interface, the direction of the induced magnetization is opposite to that without Andreev bound states. We also clarify the conditions under which the inverted induced magnetization appears. Applying this novel effect helps distinguishing the pairing symmetry of a superconductor.
10 pages, 11 figures
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- Superconducting phenomena in systems with unconventional magnets
- Controllable odd-frequency Cooper pairs in multi-superconductor Josephson junctions
- Reentrant proximity-induced superconductivity for GeTe semimetal
- Vortex supercurrent inversion by frequency-symmetry conversion of Cooper pairs
- Supercurrent reversal in Zeeman-split Josephson junctions
- Chiral Current Inversion Induced by Flat-Band Andreev Bound States