TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.15.3.100
TI  - Multiple Andreev reflections in diffusive SINIS and SIFIS junctions
PY  - 2023/09/18
UR  - https://www.scipost.org/SciPostPhys.15.3.100
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 15
IS  - 3
SP  - 100
A1  - Polkin, Artem V.
AU  - Ioselevich, Pavel A.
AB  - We study Multiple Andreev Reflections in long diffusive superconductor(S)-normal metal(N)-superconductor junctions with low-transparency interfaces. Assuming strong thermalization in the weak link, we calculate the current-voltage dependence $I(V)$. At intermediate temperatures, $\varepsilon_\mathrm{Th}\ll T\ll\Delta$, the current is dominated by noncoherent multiple Andreev reflections and is obtained analytically. The results are generalized to a ferromagnetic junction. We find that the exchange field produces a non-trivial splitting of the subharmonic gap structure. This effect relies on thermalization and vanishes in SFS junctions with no energy relaxation in the weak link.
ER  -

@Article{10.21468/SciPostPhys.15.3.100,
	title={{Multiple Andreev reflections in diffusive SINIS and SIFIS junctions}},
	author={Artem V. Polkin and Pavel A. Ioselevich},
	journal={SciPost Phys.},
	volume={15},
	pages={100},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.15.3.100},
	url={https://scipost.org/10.21468/SciPostPhys.15.3.100},
}