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Related papers: Current-induced forces and hot-spots in biased nan…

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We investigate the electronic properties of ballistic planar Josephson junctions with multiple superconducting terminals. Our devices consist of monolayer graphene encapsulated in boron nitride with molybdenum-rhenium contacts. Resistance…

We develop an electrokinetic technique that continuously manipulates colloidal particles to concentrate into patterned particulate groups in an energy efficient way, by exclusive harnessing of the intrinsic Joule heating effects. Our…

Applied Physics · Physics 2019-04-17 Golak Kunti , Jayabrata Dhar , Anandaroop Bhattacharya , Suman Chakraborty

Studies of thermally induced transport in nanostructures provide access to an exciting regime where fluctuations are relevant, enabling the investigation of fundamental thermodynamic concepts and the realization of thermal energy…

Mesoscale and Nanoscale Physics · Physics 2021-02-09 Sven Dorsch , Artis Svilans , Martin Josefsson , Bahareh Goldozian , Mukesh Kumar , Claes Thelander , Andreas Wacker , Adam Burke

We address the microscopic origin of the current-induced forces by analyzing results of first principles density functional calculations of atomic gold wires connected to two gold electrodes with different electrochemical potentials. We…

Materials Science · Physics 2009-11-07 Mads Brandbyge , Kurt Stokbro , Jeremy Taylor , Jose-Luis Mozos , Pablo Ordejon

The application of AC electric fields in aqueous suspensions of anisotropic particles leads to unbalanced liquid flows and nonlinear, induced-charge electrophoretic (ICEP) motion. We report experimental observations of the motion of "Janus"…

Fluid Dynamics · Physics 2009-11-13 Sumit Gangwal , Olivier J. Cayre , Martin Z. Bazant , Orlin D. Velev

We theoretically investigate heat transport in hybrid normal metal-superconductor (NS) nanojunctions focusing on the effect of thermal rectification. We show that the heat diode effect in the junction strongly depends on the transmissivity…

Mesoscale and Nanoscale Physics · Physics 2013-12-17 F. Giazotto , F. S. Bergeret

Motivated by the recent proposals for unconventional emergent physics in twisted bilayers of nodal superconductors, we study the peculiarities of the Josephson effect at the twisted interface between $d$-wave superconductors. We demonstrate…

Superconductivity · Physics 2025-01-31 Pavel A. Volkov , Shu Yang Frank Zhao , Nicola Poccia , Xiaomeng Cui , Philip Kim , J. H. Pixley

We investigate the thermoelectric response of a coherent conductor in contact with a scanning probe. Coupling to the probe has the dual effect of allowing for the controlled local injection of heat currents into the system and of inducing…

Mesoscale and Nanoscale Physics · Physics 2022-06-06 Rafael Sánchez , Cosimo Gorini , Geneviève Fleury

We theoretically investigate an opportunity to implement a source of highly spin-polarized ac current on the basis of superconductor/weak ferromagnet/superconductor (SFS) voltage-biased junction in the regime of essential proximity effect…

Superconductivity · Physics 2011-10-18 A. M. Bobkov , I. V. Bobkova

We consider the Johnson noise of a two-dimensional, two-terminal electrical conductor for which the electron system obeys the Wiedemann-Franz law. We derive two simple and generic relations between the Johnson Noise temperature and the heat…

Mesoscale and Nanoscale Physics · Physics 2021-10-22 Calvin Pozderac , Brian Skinner

InSb nanoflags, due to their intrinsic spin-orbit interactions, are an interesting platform in the study of planar Josephson junctions. Ballistic transport, combined with high transparency of the superconductor/semiconductor interfaces, was…

High electric conductivity ~100 MegaSiemens/m and Seebeck coefficient >200 mkV/K of carbon nanotubes (CNT) make them attractive for a variety of applications. Unfortunately, a high thermal conductivity ~ 3000 W/(m*K) due to the phonon…

Mesoscale and Nanoscale Physics · Physics 2016-11-10 T. Gupta , I. P. Nevirkovets , V. Chandrasekhar , S. Shafranjuk

We develop a hydrodynamic theory of charge and heat currents induced by traveling waves, such as surface acoustic waves, in graphene devices near charge neutrality. The currents depend on the intrinsic conductivity and viscosity of the…

Mesoscale and Nanoscale Physics · Physics 2026-02-25 E. Kirkinis , A. Levchenko , A. V. Andreev

We describe here the first experimental realization of a heat interferometer, thermal counterpart of the well-known superconducting quantum interference device (SQUID). These findings demonstrate, on the first place, the existence of…

Superconductivity · Physics 2014-05-09 M. J. Martínez-Pérez , P. Solinas , F. Giazotto

This work is devoted to the investigation of the nonstationary problem of the thermal conductivity of a nanoemitter on the surface of a massive copper cathode when a field electron emission current passes through it. At the same time, the…

Applied Physics · Physics 2023-05-08 M. Diachenko , S. Lebedynskyi , R. Kholodov

We calculate the dc Josephson current for two superconductor-ferromagnet (S/F) bilayers separated by a thin insulating film. It is demonstrated that the critical Josephson current $I_{c}$ in the junction strongly depends on the relative…

Superconductivity · Physics 2009-11-07 F. S. Bergeret , A. F. Volkov , K. B. Efetov

We discuss the current status of the theory of the "high-temperature" superconductivity in intercalated graphites YbC6 and CaC6. We emphasize that while the general picture of conventional, phonon-driven superconductivity has already…

Superconductivity · Physics 2009-11-11 I. I. Mazin , L. Boeri , O. V. Dolgov , A. A. Golubov , G. B. Bachelet , M. Giantomassi , O. K. Andersen

We investigate the potential to use a magneto-thermo-electric instability that may be induced in a mesoscopic magnetic multi-layer (F/f/F) to create and control magnetic superstructures. In the studied multilayer two strongly ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2015-07-22 A. M. Kadigrobov , R. I. Shekhter , M. Jonson

We observe a series of sharp resonant features in the tunnelling differential conductance of InAs quantum dots. We found that dissipative quantum tunnelling has a strong influence on the operation of nano-devices. Because of such tunnelling…

We study a mechanism to induce superconductivity in atomically thin semiconductors where excitons mediate an effective attraction between electrons. Our model includes interaction effects beyond the paradigm of phonon-mediated…

Mesoscale and Nanoscale Physics · Physics 2024-11-28 Jonas von Milczewski , Xin Chen , Atac Imamoglu , Richard Schmidt