Fig. 1: Schematic of the spin-triplet Andreev reflection at FM/SC interface. | Nature Communications

Fig. 1: Schematic of the spin-triplet Andreev reflection at FM/SC interface.

From: Evidence for anisotropic spin-triplet Andreev reflection at the 2D van der Waals ferromagnet/superconductor interface

Fig. 1

a Conventional Andreev reflection at the FM/spin-singlet SC interface. b The spin-triplet Andreev reflection at the FM/spin-triplet SC interface. c Schematic of the spin-triplet Andreev reflection resulting from Rashba SOC at the interface between a FM and a conventional s-wave SC. The arrows in Rashba SOC band indicate spin-momentum locking and the red arrows represent the spin-polarization direction of equal-spin-triplet pairs. d, e Anisotropic spin-triplet Andreev reflection at the FM/SC interface and the low/high interfacial resistance states that depend on the FM magnetization direction, M (green arrow). Red arrows at the interface denote the spin direction of equal-spin-triplet pairs. For M along the interface the spin-triplet Andreev reflection can be suppressed.

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