3 years ago

DC-current induced domain wall in a chiral $p$-wave superconductor.

Thibaut Jonckheere, Takeo Kato

We study theoretically the impact of an applied DC-current on a mesoscopic chiral $p$-wave superconductor. Performing quasiclassical calculations on a two-dimensional system, with an external magnetic flux to generate a DC current, we show that the current can trigger a transition to a state with a domain wall between regions of different chiralities. The system shows an hysteretic behavior, as different domain wall configurations are possible for a given current. This domain wall creation mechanism can give new insights on recent experiments observing anomalous current variations in Sr${}_2$RuO${}_4$ junctions.

Publisher URL: http://arxiv.org/abs/1711.01549

DOI: arXiv:1711.01549v1

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