178 citations · 1.4k across the 25 of their papers we have counts for
25 papers
Efficient Quasiparticle Evacuation in Superconducting Devices
Sukumar Rajauria, L. M. A. Pascal, Ph. Gandit +3
We have studied the diffusion of excess quasiparticles in a current-biased superconductor strip in proximity to a metallic trap junction. In particular, we have measured accurately…
Persistence of superconductivity in niobium ultrathin films grown on R-Plane Sapphire
Cécile Delacour, Luc Ortega, Marc Faucher +4
We report on a combined structural and electronic analysis of niobium ultrathin films (from 2 to 10 nm) deposited in ultra-high vacuum on atomically flat R-plane sapphire wafers. A…
Measurement of the effect of quantum phase-slips in a Josephson Junction chain
I. M. Pop, I. Protopopov, F. Lecocq +4
We investigate experimentally the physics of quantum phase slips in one-dimensional Josephson Junction chains. These quantum phase-slips are induced by quantum phase fluctuations o…
Spin-Valve Effect of the Spin Accumulation Resistance in a Double Ferromagnet - Superconductor Junction
Pengshun S. Luo, Thierry Crozes, Bruno Gilles +3
We have measured the transport properties of Ferromagnet - Superconductor nanostructures, where two superconducting aluminum (Al) electrodes are connected through two ferromagnetic…
Competition between electronic cooling and Andreev dissipation in a superconducting micro-cooler
Sukumar Rajauria, Philippe Gandit, F. W. J. Hekking +2
We discuss very low temperature experiments on superconducting micro-coolers made of a double Normal metal - Insulator - Superconductor junction. We investigate with a high resolut…
Quasiparticle diffusion based heating in superconductor tunneling micro-coolers
Bernard Pannetier, Herve' Courtois, Sukumar Rajauria
In a hybrid Superconductor - Insulator - Normal metal tunnel junction biased just below the gap, the extraction of hot electrons out of the normal metal results in electronic cooli…