Abstract
We study the Rashba spin–orbit coupling (RSOC) effect on the supercurrent in a clean tripletsuperconductor/two-dimensional electron gas/triplet superconductor (TS/2DEG/TS)junction, where RSOC is considered in the 2DEG region. Based on the Bogoliubov–deGennes equation and quantum scattering method, we show that RSOC can lead to a0–π oscillation of supercurrent and the abrupt current reversal effect. The current direction canbe reversed by a tiny modulation of RSOC, and this is attributed to the equal spin pairingof the TS order parameter and the spin precession phase of the quasiparticle traveling inthe RSOC region. The RSOC strength can be controlled by an electric field in experiments,thus our findings provide a purely electric means to modulate the supercurrent in TSJosephson junctions.
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