Phase-dependent multiple Andreev reflections in SNS interferometers
J. Lantz, V. S. Shumeiko, E. Bratus, G. Wendin
DOI 10.1103/PhysRevB.65.134523 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
A theory of coherent multiple Andreev reflections (MAR) is developed for superconductor–normal-metal–superconductor interferometers. We consider a Y-shaped normal-electron-beam splitter connecting two superconducting reservoirs, where the two connection points to the same superconductor can have different phases. The current is calculated in the quantum transport regime as a function of applied voltage and phase difference, I(V,φ). MAR in interferometers incorporate two features: interference in the arms of the splitter, and interplay with Andreev resonances. The latter feature yields enhancement of the subgap current and current peaks with phase-dependent positions and magnitudes. The interference effect leads to suppression of the subgap current and complete disappearance of the current peaks at φ=π. The excess current at large voltage decreases and changes sign with increasing phase difference.
Similar papers
Phase dependent multiple Andreev reflections in SNS interferometers
similarity 1.00J. Lantz et al. · 2002 · arXiv:cond-mat/0201278
Source status unknown — claims are unverified
Phase Sensitive Shot Noise in an Andreev Interferometer
similarity 0.91B. Reulet et al.
Source status unknown — claims are unverified
Multiple Andreev and elastic interface scattering in superconductor-normal-metal-superconductor junctions
similarity 0.90A. Golub & B. Horovitz
Source status unknown — claims are unverified
Resonant transmission of normal electrons through Andreev states in ferromagnets
similarity 0.90A. Kadigrobov et al.
Source status unknown — claims are unverified
Andreev interferometry as a probe of superconducting phase correlations in the pseudogap regime of the cuprates
similarity 0.90Daniel E. Sheehy et al.
Source status unknown — claims are unverified
Large thermoelectric effect in ballistic Andreev interferometers
similarity 0.89Mikhail S. Kalenkov & Andrei D. Zaikin
Source status unknown — claims are unverified