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Cooling high-power electronics in multilayer integrated circuits (ICs) is challenging for existing cooling methods. In this work, we designed through-chip microchannels (TCMCs) that cross the entire chip perpendicularly to the layers, with…

Fluid Dynamics · Physics 2023-12-20 Lihong Ao , Aymeric Ramiere

We propose a thermal transistor based on a three-terminal normal-superconductor (NS) junction with superconductor terminal acting as the base. The emergence of heat amplification is due to the negative differential thermal conductance…

Mesoscale and Nanoscale Physics · Physics 2019-02-06 Gaomin Tang , Jiebin Peng , Jian-Sheng Wang

A Bose--Einstein condensate of exciton polaritons coexisting with a Fermi gas of electrons has been recently proposed as a promising system for realisation of room-temperature superconductivity [Phys. Rev. Lett., 104, 106402 (2010)]. In…

Superconductivity · Physics 2015-03-18 F. P. Laussy , T. Taylor , I. A. Shelykh , A. V. Kavokin

To reach large-scale quantum computing, three-dimensional integration of scalable qubit arrays and their control electronics in multi-chip assemblies is promising. Within these assemblies, the use of superconducting interconnections, as…

We report the fabrication and characterization of superconducting quantum interference devices (SQUIDs) based on InAs nanowires and vanadium superconducting electrodes. These mesoscopic devices are found to be extremely robust against…

Mesoscale and Nanoscale Physics · Physics 2011-06-06 Panayotis Spathis , Subhajit Biswas , Stefano Roddaro , Lucia Sorba , Francesco Giazotto , Fabio Beltram

Superconductors are known to be excellent thermal insulators at low temperature owing to the presence of the energy gap in their density of states (DOS). In this context, the superconducting \textit{proximity effect} allows to tune the…

Mesoscale and Nanoscale Physics · Physics 2023-04-14 Nadia Ligato , Federico Paolucci , Elia Strambini , Francesco Giazotto

We study the consequences of non-equilibrium heating and inverse proximity effect in normal metal - insulator - superconductor - insulator - normal metal (NISIN) junctions with a simple quasi-one-dimensional model. We especially focus on…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 V. J. Kauppila , H. Q. Nguyen , T. T. Heikkilä

Rapid miniaturization of electronic devices and circuits demands profound understanding of fluctuation phenomena at the nanoscale. Superconducting nanowires -- serving as important building blocks for such devices -- may seriously suffer…

Mesoscale and Nanoscale Physics · Physics 2021-07-06 Konstantin Yu. Arutyunov , Janne S. Lehtinen , Alexey Radkevich , Andrew G. Semenov , Andrei D. Zaikin

We propose a general protocol for low-control refrigeration and thermometry of thermal qubits, which can be implemented using electronic spins in diamond. The refrigeration is implemented by a probe, consisting of a network of interacting…

We propose a mesoscopic setup which exhibits strong and manifestly non-Gaussian fluctuations of energy and temperature when suitably driven out of equilibrium. The setup consists of a normal metal island (N) coupled by tunnel junctions (I)…

Mesoscale and Nanoscale Physics · Physics 2012-04-03 M. A. Laakso , T. T. Heikkilä , Yuli V. Nazarov

Micro-channel cooling initially aiming at small-sized high-power integrated circuits is being transferred to the field of high energy physics. Today`s prospects of micro-fabricating silicon opens a door to a more direct cooling of detector…

Superconducting diodes, characterized by nonreciprocal supercurrent transport, offer transformative opportunities for ultra-low-power circuits. However, achieving reliable operation at temperatures above liquid nitrogen remains a major…

A method is described for cooling conductive channels to below ambient temperature. The thermodynamic induction principle dictates that the electrically biased channel will cool if the electrical conductance decreases with temperature. The…

Mesoscale and Nanoscale Physics · Physics 2021-10-07 S. N. Patitsas

In this paper, we propose an electronic refrigerator based on a ballistic Andreev interferometer that allows to reach a maximum cooling power per channel up to five orders of magnitude larger than that of the conventional normal…

Mesoscale and Nanoscale Physics · Physics 2025-07-08 Francesco Cioni , Fabio Taddei

Superconducting diodes enable dissipationless directional transport, yet achieving electrical tunability and scalability remains a major challenge for circuit-level integration. Here, we demonstrate an electrothermal-switch superconducting…

Cold ions in traps are well-established, highly controllable quantum systems with a wide variety of applications in quantum information, precision spectroscopy, clocks and chemistry. Nanomechanical oscillators are used in advanced sensing…

Atomic Physics · Physics 2023-12-04 Moritz Weegen , Martino Poggio , Stefan Willitsch

In magnetic nanostructures one usually uses a magnetic field to commute between two resistance (R) states. A less common but technologically more interesting alternative to achieve R-switching is to use an electrical current, preferably of…

Materials Science · Physics 2009-11-11 J. Ventura , J. P. Araujo , J. B. Sousa , Y. Liu , Z. Zhang , P. P. Freitas

Motivated by the unique dispersions close to the two dimensional band crossing in a topologically charged nodal surface semimetal (NSSM) spectrum, we perform theoretical analysis of quantum tunnelling through a junction consisting of such…

Mesoscale and Nanoscale Physics · Physics 2026-01-27 Bhaskar Pandit , Debabrata Sinha , Satyaki Kar

We present an exhaustive theoretical analysis of charge and thermoelectric transport in a normal metal-ferromagnetic insulator-superconductor (NFIS) junction, and explore the possibility of its use as a sensitive thermometer. We…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 F. Giazotto , P. Solinas , A. Braggio , F. S. Bergeret

Identifying materials and devices which offer efficient thermoelectric effects at low temperature is a major obstacle for the development of thermal management strategies for low-temperature electronic systems. Superconductors cannot offer…

Mesoscale and Nanoscale Physics · Physics 2014-09-04 F. Giazotto , J. W. A. Robinson , J. S. Moodera , F. S. Bergeret