53 citations · 96 across the 5 of their papers we have counts for
6 papers
Superconductor-semiconductor magnetic microswitch
C. Castellana, F. Giazotto, M. Governale +2
A hybrid superconductor--two-dimensional electron gas microdevice is presented. Its working principle is based on the suppression of Andreev reflection at the superconductor-semico…
Andreev reflection and cyclotron motion at superconductor -- normal-metal interfaces
F. Giazotto, M. Governale, U. Zuelicke +1
We investigate Andreev reflection at the interface between a superconductor and a two--dimensional electron system (2DES) in an external magnetic field such that cyclotron motion i…
Manipulating nonequilibrium magnetism through superconductors
F. Giazotto, F. Taddei, R. Fazio +1
Electrostatic control of the magnetization of a normal mesoscopic conductor is analyzed in a hybrid superconductor-normal-superconductor system. This effect stems from the interpla…
Spin gap in the 2D electron system of GaAs/AlGaAs single heterojunctions in weak magnetic fields
V. S. Khrapai, A. A. Shashkin, E. L. Shangina +4
We study the interaction-enhanced spin gaps in the two-dimensional electron gas confined in GaAs/AlGaAs single heterojunctions subjected to weak magnetic fields. The values are obt…
Josephson current in ballistic Nb/InAs/Nb highly transmissive junctions
Francesco Giazotto, Kasper Grove-Rasmussen, Rosario Fazio +3
Highly transmissive ballistic junctions are demonstrated between Nb and the two-dimensional electron gas formed at an InAs/AlSb heterojunction. A reproducible fabrication protocol…
Andreev reflection in engineered Al/Si/InGaAs(001) junctions
S. De Franceschi, F. Giazotto, F. Beltram +3
Complete suppression of the native n-type Schottky barrier is demonstrated in Al/InGaAs(001) junctions grown by molecular-beam-epitaxy. This result was achieved by the insertion of…