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Transport properties of a few hundreds of nanometers thick (in the graphene plane direction) lamellae of highly oriented pyrolytic graphite (HOPG) have been investigated. Current-Voltage characteristics as well as the temperature dependence…

Superconductivity · Physics 2013-02-25 A. Ballestar , J. Barzola-Quiquia , P. Esquinazi

Due to its exceptional electronic and thermal properties, graphene is a key material for bolometry, calorimetry, and photon detection. However, despite graphene's relatively simple electronic structure, the physical processes responsible…

Thermocurrent flowing through a single-molecule device contains valuable information about the quantum properties of the molecular structure and, in particular, on its electronic and phononic excitation spectra, and entropy. Furthermore,…

Mesoscale and Nanoscale Physics · Physics 2023-02-24 Serhii Volosheniuk , Damian Bouwmeester , Chunwei Hsu , H. S. J. van der Zant , Pascal Gehring

Cryogenic microsystems that utilize different 3D integration techniques are being actively developed, e.g., for the needs of quantum technologies. 3D integration can introduce opportunities and challenges to the thermal management of low…

Since the the first studies of thermodynamics, heat transport has been a crucial element for the understanding of any thermal system. Quantum mechanics has introduced new appealing ingredients for the manipulation of heat currents, such as…

Superconductivity · Physics 2018-03-19 Giuliano Timossi , Antonio Fornieri , Federico Paolucci , Claudio Puglia , Francesco Giazotto

Astronomical observations of cosmic sources in the far-infrared and X-ray bands require extreme sensitivity. The most sensitive detectors are cryogenic bolometers and calorimeters operating typically at about 100 mK. The last stage of…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 D. V. Anghel , A. Luukanen , J. P. Pekola

We study the thermodynamic properties of a superconductor/normal metal/superconductor Josephson junction {in the short limit}. Owing to the proximity effect, such a junction constitutes a thermodynamic system where {phase difference},…

Superconductivity · Physics 2019-10-16 Francesco Vischi , Matteo Carrega , Alessandro Braggio , Pauli Virtanen , Francesco Giazotto

The authors report on synthesis and thermal properties of the electrically-conductive thermal interface materials with the hybrid graphene-metal particle fillers. The thermal conductivity of resulting composites was increased by ~500% in a…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Vivek Goyal , Alexander A. Balandin

We study, both theoretically and experimentally, the features on the current-voltage characteristic of a highly transparent Josephson junction caused by transition of the superconducting leads to the normal state. These features appear due…

Graphene, as a passivation layer, can be used to protect the black phosphorus from the chemical reaction with surrounding oxygen and water. However, black phosphorus and graphene heterostructures have low efficiency of heat dissipation due…

Materials Science · Physics 2019-03-28 Yang Chen , Yingyan Zhang , Kun Cai , Jinwu Jiang , Jin-cheng Zheng , Junhua Zhao , Ning Wei

Semiconductor integrated circuits operated at cryogenic temperature will play an essential role in quantum computing architectures. These can offer equivalent or superior performance to their room-temperature counterparts while enabling a…

Mesoscale and Nanoscale Physics · Physics 2025-07-18 Jonathan Eastoe , Grayson M. Noah , Debargha Dutta , Alessandro Rossi , Jonathan D. Fletcher , Alberto Gomez-Saiz

Hidden defects affecting the interface in a composite slab are evaluated from thermal data collected on the upper side of the specimen. First we restrict the problem to the upper component of the object. Then we investigate heat transfer…

Applied Physics · Physics 2019-10-11 Gabriele Inglese , Roberto Olmi

Josephson tunnel junctions are proposed as efficient phase-tunable thermal rectifiers. The latter exploit the strong temperature dependence of the superconducting density of states and phase-dependence of heat currents flowing through…

Mesoscale and Nanoscale Physics · Physics 2013-05-20 M. J. Martinez-Perez , F. Giazotto

A model system consisting of a mesoscopic superconducting grain coupled by Josephson junctions to two macroscopic superconducting electrodes is studied. We focus on the effects of ohmic dissipation caused by resistive shunts and…

Superconductivity · Physics 2009-11-10 Gil Refael , Eugene Demler , Yuval Oreg , Daniel S. Fisher

In this paper, a simple and general hierarchical control framework is proposed and validated through the interconnection of the Joule-Thompson and the Brayton cycle stages of a cryogenic refrigerator. The proposed framework enables to…

Systems and Control · Computer Science 2017-03-20 M. Alamir , P. Bonnay , F. Bonne , V. V. Trinh

Accurate on-chip temperature sensing is critical for the optimal performance of modern CMOS integrated circuits (ICs), to understand and monitor localized heating around the chip during operation. The development of quantum computers has…

Heat dissipation in current-carrying cryogenic nanostructures is problematic because the phonon density of states decreases strongly as energy decreases. We show that the Coulomb interaction can prove a valuable resource for carrier cooling…

Mesoscale and Nanoscale Physics · Physics 2013-08-27 John King Gamble , Mark Friesen , Robert Joynt , S. N. Coppersmith

Muon cooling is the main technological obstacle in the building of a muon collider. A muon cooling scheme based on Frictional Cooling holds promise in overcoming this obstacle. An experiment designed to demonstrate the Frictional Cooling…

Accelerator Physics · Physics 2009-08-21 R. Galea , A. Caldwell , L. Newburgh

A 1D Josephson junction loop, doped with a spin-flipper and attached to two thermal reservoirs, operates as a heat engine or a refrigerator, a Joule pump, or even a cold pump. When operating as a quantum heat engine, the efficiency of this…

Statistical Mechanics · Physics 2022-06-13 Subhajit Pal , Colin Benjamin

We have studied the transport properties of TEM lamellae obtained from a pyrolytic graphite sample with electrical contacts at the edges of the embedded interfaces. The temperature dependence of the resistance as well as the current-voltage…

Superconductivity · Physics 2015-06-18 Ana Ballestar , Tero T Heikkilä , Pablo Esquinazi