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We have performed high resolution $3-$dimensional compressible hydrodynamics simulations to investigate the effects of shocks and turbulence on energy transport into hot Jupiter atmospheres, under a variety of shear gradients. We focus on a…

Earth and Planetary Astrophysics · Physics 2018-10-17 Taeho Ryu , Michael Zingale , Rosalba Perna

When applying a voltage bias across a thin nanopore, localized Joule heating can lead to single bubble nucleation, offering a unique platform for studying nanoscale bubble behavior, which is still poorly understood. Accordingly, we…

Conventional heat carrier liquids have demonstrated remarkable enhancement in heat and mass transfer when nanoparticles were suspended in them. These liquid-nanoparticle suspensions are now known as Nanofluids. However the relationship…

Semiconducting diode with nonreciprocal transport effect underlies the cornerstone of contemporary integrated circuits (ICs) technology. Due to isotropic superconducting properties and the lack of breaking of inversion symmetry for…

We study InAs nanowire resonators fabricated on sapphire substrate with a local gate configuration. The key advantage of using an insulating sapphire substrate is that it results in a reduced parasitic capacitance thus allowing both wide…

Mesoscale and Nanoscale Physics · Physics 2016-01-07 T. S. Abhilash , John P Mathew , Shamashis Sengupta , Mahesh R Gokhale , Arnab Bhattacharya , Mandar M. Deshmukh

The magnetothermopower and the magnetoresistance of single Co Ni/Cu multilayered nan-owires with various thicknesses of the Cu spacer are investigated. Both kinds of measurement have been performed as a function of temperature (50 K to 325…

A type I superconductor expels a magnetic field from its interior to a surface layer of thickness $\lambda_L$, the London penetration depth. $\lambda_L$ is a function of temperature, becoming smaller as the temperature decreases. Here we…

Superconductivity · Physics 2021-07-13 J. E. Hirsch

We theoretically study the spin-polarized current flowing through a Josephson junction (JJ) in a spin injection device. When the spin-polarized current is injected from a ferromagnet (FM) in a superconductor (SC), the charge current is…

Superconductivity · Physics 2009-10-31 S. Takahashi , T. Yamashita , T. Koyama , S. Maekawa , H. Imamura

Problems of heat transport are ubiquitous to various technologies such as power generation, cooling, electronics, and thermoelectrics. Within this context it is natural that external heat flux control on nanoscale devices became an…

Statistical Mechanics · Physics 2023-01-02 M. Romero-Bastida , Ana Gabriela Martínez-Rosas

With the rapid advances in the development of nanotechnology, nowadays, the sizes of elementary unit, i.e. transistor, of micro- and nanoelectronic devices are well deep into nanoscale. For the pursuit of cheaper and faster nanoscale…

Materials Science · Physics 2018-04-03 Xiaohan Shen

The atmosphere of a hot jupiter may be subject to a thermo-resistive instability, in which the increasing electrical conductivity with temperature leads to runaway Ohmic heating. We introduce a simplified model of the local dynamics in the…

Earth and Planetary Astrophysics · Physics 2022-12-07 Raphaël Hardy , Andrew Cumming , Paul Charbonneau

The solar coronal heating problem is an open question since 1939. One proposed model for the transport and release of mechanical energy generated in the sub-phorospheric layers and photosphere is the nanoflare model that incorporates Ohmic…

Solar and Stellar Astrophysics · Physics 2017-07-12 Charalambos Kanella , Boris V. Gudiksen

Metal films and other geometries of nanoscale thickness, when exposed to laser irradiation, melt and evolve as fluids as long as their temperature is sufficiently high. This evolution often leads to pattern formation, which may be…

Materials Science · Physics 2026-05-12 Ryan H. Allaire , Linda J. Cummings , Lou Kondic

Heating in nanoscale systems driven out of equilibrium is of fundamental importance, has ramifications for technological applications, and is a challenge to characterize experimentally. Prior experiments using nanoscale junctions have…

Mesoscale and Nanoscale Physics · Physics 2014-03-04 Ruoyu Chen , Patrick J. Wheeler , M. Di Ventra , D. Natelson

Decades of measurements of the thermophysical properties of hot metals show that pulsed Joule heating is an effective method to heat solid and liquid metals that are chemically reactive or difficult to contain. In order to extend such…

Instrumentation and Detectors · Physics 2023-10-31 Zachary M. Geballe , Joseph Lai , Michael J. Walter

We have fabricated ultra-thin YBa2Cu3O7-x nanowires with a high critical current density and studied their voltage switching behavior in the 4.2 - 90 K temperature range. A comparison of our experimental data with theoretical models…

Superconductivity · Physics 2018-08-22 M. Lyatti , M. A. Wolff , A. Savenko , M. Kruth , S. Ferrari , U. Poppe , W. Pernice , R. E. Dunin-Borkowski , C. Schuck

The paper investigates friction and friction heat of the micronscale iron under influences of velocity of the slider and temperature of the substrate by using smoothed particle hydrodynamics simulations. In the velocity range of 10 - 100…

Soft Condensed Matter · Physics 2023-08-08 Le Van Sang , Akihiko Yano , Shuji Fujii , Natsuko Sugimura , Hitoshi Washizu

In the past few decades, great efforts have been devoted to studying heat transfer on the nanoscale due to its importance in multiple technologies such as thermal control and sensing applications. Heat conduction through the nanoconfined…

Computational Physics · Physics 2022-06-03 Reza Rabani , Samy Merabia , Ahmadreza Pishevar

Semiconductor nanowires are promising material systems for coming of age nanotechnology. The usage of the vapor solid solid (VSS) route, where the catalyst used for promoting axial growth of nanowire is a solid, offers certain advantages…

Mesoscale and Nanoscale Physics · Physics 2021-11-22 Carina B. Maliakkal , Marcus Tornberg , Daniel Jacobsson , Sebastian Lehmann , Kimberly A. Dick

The observations made during the Voyager 2 flyby have shown that the stratosphere of Uranus and Neptune are warmer than expected by previous models. In addition, no seasonal variability of the thermal structure has been observed on Uranus…

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