TY - JOUR
T1 - Photon-assisted Andreev transport and sub-gap structures
AU - Wildt, M
AU - Kutchinsky, Jonatan
AU - Taboryski, Rafael Jozef
AU - Sørensen, C B
AU - Hansen, Jørn Bindslev
AU - Lindelof, P E
PY - 2000
Y1 - 2000
N2 - We report new measurements of microwave-induced perturbations of the sub-harmonic energy gap structures in the current-voltage characteristics of superconductor-semiconductor-superconductor junctions. Around the sub-gap bias voltages associated with the enhanced quasi-particle transfer mediated by multiple Andreev reflection processes we observe microwave induced satellites, shifted in voltage by multiples of hf/en, where hf is the photon energy and n is the number of quasi-particle traversals as determined by the Andreev processes. The observed behavior is the analogue of the so-called photon-assisted tunneling but here associated with the multiple Andreev reflections. (C) 2000 Elsevier Science B.V. All rights reserved.
AB - We report new measurements of microwave-induced perturbations of the sub-harmonic energy gap structures in the current-voltage characteristics of superconductor-semiconductor-superconductor junctions. Around the sub-gap bias voltages associated with the enhanced quasi-particle transfer mediated by multiple Andreev reflection processes we observe microwave induced satellites, shifted in voltage by multiples of hf/en, where hf is the photon energy and n is the number of quasi-particle traversals as determined by the Andreev processes. The observed behavior is the analogue of the so-called photon-assisted tunneling but here associated with the multiple Andreev reflections. (C) 2000 Elsevier Science B.V. All rights reserved.
U2 - 10.1016/S1386-9477(99)00234-9
DO - 10.1016/S1386-9477(99)00234-9
M3 - Journal article
SN - 1386-9477
VL - 6
SP - 844
EP - 847
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
IS - 1-4
ER -