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We study the electron temperature profiles for an inhomogeneous electron flow in the hydrodynamic regime. We assume that the inhomogeneity is due to a weakly non-uniform distribution of the momentum relaxation time within a spherically…

介观与纳米尺度物理 · 物理学 2021-08-18 Gu Zhang , Valentin Kachorovskii , Konstantin Tikhonov , Igor Gornyi

Calcium fluoride (fluorspar, CaF2 ) is of consummate importance for the manufacturing of optical components. In many cases, its wide transmission band eliminates the need for antireflective coatings. It is thus of interest to study its…

材料科学 · 物理学 2025-09-10 T. Das , D. Alam , C. A. Ullrich , U. D. Jentschura

The adiabatic elastic modulus is often useful in the high frequency response of materials. Unfortunately, it can be much more difficult to directly measure the adiabatic elastic modulus of material than the isothermal elastic modulus. We…

材料科学 · 物理学 2016-05-24 Michael J. Waters , Andrew W. Bielawski

Over the last few decades, extensive previous studies of the nonlinear response of metal nanoparticles report a wide variation of nonlinear coefficients, thus, revealing a highly confused picture of the underlying physics. This naturally…

光学 · 物理学 2020-10-28 Ieng Wai Un , Yoatan Sivan

Electrically driven adiabatic changes of temperature are identified in the archetypal electrocaloric material PbSc0.5Ta0.5O3 by comparing isothermal changes of electrical polarization due to slow variation of electric field, and adiabatic…

材料科学 · 物理学 2021-01-22 S. Crossley , R. W. Whatmore , N. D. Mathur , X. Moya

We derive expressions for classical isothermal and adiabatic elastic constants for periodic systems with the boundary contributions included explicitly. The potential-dependent part of these expressions is written in terms of potential…

材料科学 · 物理学 2022-10-19 Andrey Pereverzev

The thermodynamic theory of dislocation-enabled plasticity is based on two unconventional hypotheses. The first of these is that a system of dislocations, driven by external forces and irreversibly exchanging heat with its environment, must…

材料科学 · 物理学 2017-12-06 J. S. Langer

At the ultra-thin limit below 20 nm, a film's electrical conductivity, thermal conductivity, or thermoelectricity depends heavily on its thickness. In most studies, each sample is fabricated one at a time, potentially leading to…

介观与纳米尺度物理 · 物理学 2023-06-22 Kien Trung Nguyen , Giang Bui-Thanh , Hong Thi Pham , Thuat Nguyen-Tran , Chi Hieu Hoang , Hung Q. Nguyen

We report on the temperature dependence of microwave-induced resistance oscillations in high-mobility two-dimensional electron systems. We find that the oscillation amplitude decays exponentially with increasing temperature, as…

介观与纳米尺度物理 · 物理学 2009-02-17 A. T. Hatke , M. A. Zudov , L. N. Pfeiffer , K. W. West

Dielectric spectroscopy measurements over a broad range of temperature and pressure were carried out on poly(oxybutylene) (POB), a type-A polymer (dielectrically-active normal mode). There are three dynamic processes appearing at lower…

软凝聚态物质 · 物理学 2009-11-10 R. Casalini , C. M. Roland

Tunable dielectric meta-surface nanostructures offer incredible performance in optical application due to their extraordinary tunability of the polarization and engineering the dispersion of light with low loss in infrared range. In this…

光学 · 物理学 2022-01-19 Golsa Mirbagheri , David T. Crouse

The impact of variable material properties, such as temperature-dependent thermal conductivity and dynamical viscosity, on the dynamics of a fully compressible turbulent convection flow beyond the anelastic limit are studied in the present…

流体动力学 · 物理学 2024-07-30 John Panickacheril John , Jörg Schumacher

Solid-state cooling based on i-caloric effects may be an alternative to conventional vapor-compression refrigeration systems. The adiabatic temperature change ($\Delta T_{S}$) is one of the parameters that characterize the i-caloric…

材料科学 · 物理学 2023-03-28 A. M. G. Carvalho , W. Imamura

We explore layered strongly correlated materials as a platform to identify and control unconventional heat transfer phenomena. We demonstrate that these systems can be tailored to sustain a wide spectrum of heat transport regimes, ranging…

强关联电子 · 物理学 2021-11-29 Giacomo Mazza , Marco Gandolfi , Massimo Capone , Francesco Banfi , Claudio Giannetti

For a system with a fixed number of electrons, the total optical sum is a constant, independent of many-body interactions, of impurity scattering and of temperature. For a single band in a metal, such a sum rule is no longer independent of…

超导电性 · 物理学 2009-11-10 A. Knigavko , J. P. Carbotte , F. Marsiglio

We re-examine the problem of the dielectric response of highly polar liquids such as water in confinement between two walls using a simple two-variable density functional theory involving number and polarisation densities. In the…

统计力学 · 物理学 2023-02-08 Daniel Borgis , Damien Laage , Luc Belloni , Guillaume Jeanmairet

The effects of electronic correlations and orbital degeneracy on thermoelectric properties are studied within the context of multi-orbital Hubbard models on different lattices. We use dynamical mean field theory with iterative perturbation…

强关联电子 · 物理学 2015-06-16 Mehdi Kargarian , Gregory A. Fiete

When a liquid droplet impacts a hot solid surface, enough vapor may be generated under it as to prevent its contact with the solid. The minimum solid temperature for this so-called Leidenfrost effect to occur is termed the Leidenfrost…

流体动力学 · 物理学 2016-02-17 Minori Shirota , Michiel A. J. van Limbeek , Chao Sun , Andrea Prosperetti , Detlef Lohse

A huge amount of water at supercritical conditions exists in Earth's interior, where its dielectric properties play a critical role in determining how it stores and transports materials. However, it is very challenging to obtain the static…

化学物理 · 物理学 2020-09-15 Rui Hou , Yuhui Quan , Ding Pan

The thermodynamic dislocation theory presented in preceding papers is used here to describe shear-banding instabilities. Central ingredients of the theory are a thermodynamically defined effective configurational temperature, and a formula…

材料科学 · 物理学 2016-12-02 J. S. Langer