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An effective free energy of a two dimensional (i.e. large area) Josephson Junctions is derived, allowing for thermal fluctuations, for random magnetic fields and for external currents. We show by using replica symmetry breaking methods,…

Superconductivity · Physics 2009-10-30 Baruch Horovitz , Anatoly Golub

The linear thermoelectric properties of molecular junctions are theoretically studied close to room temperature within a model including electron-electron and electron-vibration interactions on the molecule. A nonequilibrium adiabatic…

Mesoscale and Nanoscale Physics · Physics 2015-11-26 C. A. Perroni , D. Ninno , V. Cataudella

We consider a mesoscopic four-terminal superconductor/normal metal (S/N) structure in the presence of a temperature gradient along the N wire. A thermoemf arises in this system even in the absence of the thermoelectric quasiparticle current…

Superconductivity · Physics 2009-11-11 A. F. Volkov , V. V. Pavlovskii

We study motion of vortices in arrays of Josephson junctions at zero temperature where it is controlled by quantum tunneling from one plaquette to another. The tunneling process is characterized by a finite time and can be slow compared to…

Soft Condensed Matter · Physics 2009-10-30 L. B. Ioffe , B. N. Narozhny

When a small system is coupled to a bath, it is generally assumed that the state of the bath remains unaffected by the system due to the bath's large number of degrees of freedom. Here we show theoretically that this assumption can be…

Mesoscale and Nanoscale Physics · Physics 2025-05-28 Samuel Cailleaux , Quentin Ficheux , Nicolas Roch , Denis M. Basko

Since the discovery of the unconventional copper-oxide high-transition-temperature superconductors (HTS), researchers have explored many methods to fabricate superconducting tunnel junctions from these materials for both superconducting…

Superconductivity · Physics 2014-09-18 Shane A. Cybart , E. Y. Cho , T. J. Wong , Björn H. Wehlin , Meng K. Ma , Chuong Huynh , R. C. Dynes

Thermal transport in nanostructures plays a critical role in modern technologies. As devices shrink, techniques that can measure thermal properties at nanometer and nanosecond scales are increasingly needed to capture transient,…

We propose a method of measuring the electron temperature $T_e$ in mesoscopic conductors and demonstrate experimentally its applicability to micron-size graphene devices in the linear-response regime ($T_e\approx T$, the bath temperature).…

Mesoscale and Nanoscale Physics · Physics 2009-04-29 K. Kechedzhi , D. W. Horsell , F. V. Tikhonenko , A. K. Savchenko , R. V. Gorbachev , I. V. Lerner , V. I. Fal'ko

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

We propose a heat valve based on the interplay between thermal transport and proximity-induced exchange splitting in Josephson tunnel junctions. We demonstrate that the junction heat conductance strongly depends on the relative alignment of…

Mesoscale and Nanoscale Physics · Physics 2013-04-09 F. Giazotto , F. S. Bergeret

Understanding and controlling heat transport in molecular junctions would provide new routes to design nanoscale coupled electronic and phononic devices. Using first principles full quantum calculations, we tune thermal conductance of a…

Mesoscale and Nanoscale Physics · Physics 2015-11-20 Qian Li , Ivan Duchemin , Shiyun Xiong , Gemma C. Solomon , Davide Donadio

We theoretically investigate the supercurrent flow in a Josephson junction consisting of two spin-split superconductors combined by a normal metal weak link. The normal metal may be driven out of equilibrium, thus modifying the electron and…

Superconductivity · Physics 2025-08-06 Chi Sun , Jacob Linder

We study the thermodynamic properties of topological Josephson junctions using a quantum spin Hall (QSH) insulator-based junction as an example. In particular, we propose that phase-dependent measurements of the heat capacity offer an…

Mesoscale and Nanoscale Physics · Physics 2021-07-20 Benedikt Scharf , Alessandro Braggio , Elia Strambini , Francesco Giazotto , Ewelina M. Hankiewicz

We used 2D coupled sine-Gordon equations combined with 3D heat diffusion equations to numerically investigate the thermal and electromagnetic properties of a $250 \times 70\,\mu\mathrm{m}^2$ intrinsic Josephson junction stack. The 700…

We present a simple on-chip electronic thermometer with the potential to operate down to 1 mK. It is based on transport through a single normal-metal - superconductor tunnel junction with rapidly widening leads. The current through the…

Mesoscale and Nanoscale Physics · Physics 2015-09-29 A. V. Feshchenko , L. Casparis , I. M. Khaymovich , D. Maradan , O. -P. Saira , M. Palma , M. Meschke , J. P. Pekola , D. M. Zumbühl

The Thomson effect induces heat release or absorption under the simultaneous application of a charge current and a temperature gradient to conductors. Here, we theoretically investigate the temperature profile due to the…

Materials Science · Physics 2023-03-17 Takahiro Chiba , Ryo Iguchi , Takashi Komine , Yasuhiro Hasegawa , Ken-ichi Uchida

We study thermal transport induced by soliton dynamics in a long Josephson tunnel junction operating in the flux-flow regime. A thermal bias across the junction is established by imposing the superconducting electrodes to reside at…

Mesoscale and Nanoscale Physics · Physics 2019-08-29 Claudio Guarcello , Paolo Solinas , Francesco Giazotto , Alessandro Braggio

Heating of charged particles via collisionless shocks, while ubiquitous in the universe, is an intriguing yet puzzling plasma phenomenon. One outstanding question is how electrons and ions approach an equilibrium after they were heated to…

High Energy Astrophysical Phenomena · Physics 2024-05-16 Masahiro Ichihashi , Aya Bamba , Yuichi Kato , Satoru Katsuda , Hiromasa Suzuki , Tomoaki Kasuga , Hirokazu Odaka , Kazuhiro Nakazawa

Atomic and single-molecule junctions represent the ultimate limit to the miniaturization of electrical circuits. They are also ideal platforms to test quantum transport theories that are required to describe charge and energy transfer in…

Mesoscale and Nanoscale Physics · Physics 2013-08-01 Woochul Lee , Kyeongtae Kim , Wonho Jeong , Linda Angela Zotti , Fabian Pauly , Juan Carlos Cuevas , Pramod Reddy

We explore the strengths and limitations of using a standard Michelson interferometer to sample line-of-sight-averaged temperature in water via two experimental setups: slow-varying temperature in static fluid and fast temperature…

Fluid Dynamics · Physics 2023-11-01 Xinyang Ge , Joanna A. Zielińska , Sergio Maldonado