313 citations · 1.3k across the 21 of their papers we have counts for
13 papers · 1 filter
Heat transport at the nanoscale and ultralow temperatures -- implications for quantum technologies
Danial Majidi, Justin P. Bergfield, Ville Maisi +3
In this perspective, we discuss thermal imbalance and the associated electron-mediated thermal transport in quantum electronic devices at very low temperatures. We first present th…
Probing Hybridization of a Single Energy Level Coupled to Superconducting Leads
D. M. T. van Zanten, H. Courtois, C. B. Winkelmann
Electron transport through a quantum dot coupled to superconducting leads shows a sharp conductance onset when a quantum dot orbital level crosses the superconducting coherence pea…
A subKelvin scanning probe microscope for the electronic spectroscopy of an individual nano-device
Thomas Quaglio, Franck Dahlem, Sylvain Martin +3
We present a combined scanning force and tunneling microscope working in a dilution refrigerator that is optimized for the study of individual electronic nano-devices. This apparat…
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…
Noise Correlations in Three-Terminal Diffusive Superconductor-Normal Metal-Superconductor Nanostructures
B. Kaviraj, O. Coupiac, H. Courtois +1
We present measurements of current noise and cross-correlations in three-terminal Superconductor-Normal metal-Superconductor (S-N-S) nanostructures that are potential solid-state e…
Circuit approach to photonic heat transport
L. Pascal, H. Courtois, F. W. J. Hekking
We discuss the heat transfer by photons between two metals coupled by a linear element with a reactive impedance. Using a simple circuit approach, we calculate the spectral power t…
Divergence at low bias and down-mixing of the current noise in a diffusive superconductor-normal metal-superconductor junction
Elsa Lhotel, Olivier Coupiac, François Lefloch +2
We present current noise measurements in a long diffusive superconductor-normal-metal-superconductor junction in the low voltage regime, in which transport can be partially describ…
Electron and phonon Cooling in a Superconductor - Normal Metal - Superconductor Tunnel Junction
Sukumar Rajauria, P. S. Luo, T. Fournier +3
We present evidence for the cooling of normal metal phonons by electron tunneling in a Superconductor - Normal metal - Superconductor tunnel junction. The normal metal electron tem…
Electron transport in a mesoscopic superconducting / ferromagnetic hybrid conductor
M. Giroud, K. Hasselbach, H. Courtois +2
We present electrical transport experiments performed on submicron hybrid devices made of a ferromagnetic conductor (Co) and a superconducting (Al) electrode. The sample was patter…
Long-Range Coherence in a Mesoscopic Metal near a Superconducting Interface
H. Courtois, Ph. Gandit, D. Mailly +1
We identify the different contributions to quantum interference in a mesoscopic metallic loop in contact with two superconducting electrodes. At low temperature, a flux-modulated J…
Coherent low-energy charge transport in a diffusive S-N-S junction
P. Dubos, H. Courtois, O. Buisson +1
We have studied the current voltage characteristics of diffusive mesoscopic Nb-Cu-Nb Josephson junctions with highly-transparent Nb-Cu interfaces. We consider the low-voltage and h…
The Josephson critical current in a long mesoscopic S-N-S junction
P. Dubos, H. Courtois, B. Pannetier +3
We carry out an extensive experimental and theoretical study of the Josephson effect in S-N-S junctions made of a diffusive normal metal (N) embedded between two superconducting el…
A very low temperature STM for the local spectroscopy of mesoscopic structures
N. Moussy, H. Courtois, B. Pannetier
We present the design and operation of a very-low temperature Scanning Tunneling Microscope (STM) working at in a dilution refrigerator. The STM features both atomic resolu…