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Properties of metals are fundamentally determined by their electron behavior, which is largely reflected by the electron work function ($\varphi $). Recent studies have demonstrated that many properties of metallic materials are directly…

材料科学 · 物理学 2015-03-31 Reza Rahemi , Dongyang Li

This paper proposes the idea that the observed dependence of stellar activity cycles on rotation rate can be a manifestation of a stronger dependence on the effective temperature. Observational evidence is recalled and theoretical arguments…

太阳与恒星天体物理 · 物理学 2023-06-26 Leonid Kitchatinov

For near-Sun missions, the spacecraft approaches very close to the Sun and space environmental effects become relevant. Strong restrictions on how much close it can get derive from the maximum temperature that the used materials can stand,…

空间物理 · 物理学 2017-10-25 Elena Ancona , Roman Ya. Kezerashvili

We apply the muffin-tin effective medium approximation to calculate the temperature dependence of the resistivity and of the thermopower of amorphous and liquid metals. The results show unambiguously that a large resistivity is accompanied…

凝聚态物理 · 物理学 2009-10-28 Ulrich Werner , Raymond Fresard

We examine the temperature dependence of the optical sum rule in the normal state due to interactions. To be concrete we adopt a weak coupling approach which uses an electron-boson exchange model to describe inelastic scattering of the…

强关联电子 · 物理学 2007-05-23 L. Benfatto , J. P. Carbotte , F. Marsiglio

We propose a general formula for the melting temperature of metals in terms of electronic mass, electronic number, and nearest-neighbor lattice distance. We derive it from the instability of the transverse phonon in the solid phase, using…

其他凝聚态物理 · 物理学 2015-05-14 Tamifusa Matsuura , Hidenori Suzuki , Ken'ichi Takano , Fumihiro Honda

The temperature dependence of the Casimir force between a real metallic plate and a metallic sphere is analyzed on the basis of optical data concerning the dispersion relation of metals such as gold and copper. Realistic permittivities…

量子物理 · 物理学 2009-01-14 I. Brevik , J. B. Aarseth , J. S. Høye , K. A. Milton

The temperature dependence of a system exhibiting a `metal-insulator transition in two dimensions at zero magnetic field' (MIT) is studied up to 90K. Using a classical scattering model we are able to simulate the non-monotonic temperature…

强关联电子 · 物理学 2015-06-24 V. Senz , T. Ihn , T. Heinzel , K. Ensslin , G. Dehlinger , D. Grützmacher , U. Gennser , E. H. Hwang , S. Das Sarma

The time dependence of the temperature during the reheating process is studied. We consider the thermal feedback effects of the produced particles on the effective dissipation rate of the inflaton field, which can lead to enhanced…

高能物理 - 唯象学 · 物理学 2021-09-28 Lei Ming

The restricted optical sum rule and its dependence on the temperature, a superconducting gap and the cutoff energy have been investigated. As known this sum rule depends on the cutoff energy and the relaxation rate even for a homogeneous…

超导电性 · 物理学 2009-11-11 A. E. Karakozov , E. G. Maksimov

Luminescence is the phenomenon investigated and applied in many disciplines of science and technique. Spectral and kinetic measurements of luminescence provide much information concerning the mechanism of luminescent devices. Better…

光学 · 物理学 2007-05-23 Eugeniusz Chimczak

We develop a non-local dielectric response theory to describe the temperature dependence of exciton lifetime in metal-semiconductor heterostructures. Coupling between excitons and surface plasmons results in a strongly nonmonotonous…

介观与纳米尺度物理 · 物理学 2015-05-07 M. V. Durnev , A. V. Kavokin , B. Gil

The temperature dependence of optical constants of titanium nitride thin film is investigated using spectroscopic ellipsometry between 1.4 to 5 eV in the temperature range 300 K to 650 K in steps of 50 K. The real and imaginary parts of the…

材料科学 · 物理学 2016-11-26 S. Tripura Sundari , R. Ramaseshan , Feby Jose , S. Dash , A. K. Tyagi

The yield of amorphous solids like metallic glasses under external stress was discussed asserting that it is related to the glass transition by increasing temperature, or that it can be understood using statistical theories of various…

软凝聚态物质 · 物理学 2015-04-22 Valery Ilyin , Itamar Procaccia , Carmel Shor , Murari Singh

Antihydrogen production has reached such a level that precision spectroscopic measurements of its properties are within reach. In particular, the ground-state level population is of central interest for experiments aiming at antihydrogen…

原子物理 · 物理学 2019-05-09 B. Radics , D. J. Murtagh , Y. Yamazaki , F. Robicheaux

The process of deriving an interatomic potentials represents an attempt to integrate out the electronic degrees of freedom from the full quantum description of a condensed matter system. In practice it is the derivatives of the interatomic…

材料科学 · 物理学 2016-06-23 G. J. Ackland

Within the framework of the Drude dispersive model, we predict an unusual non-monotonous temperature dependence of the Casimir force for thin metal films. For certain conditions, this force decreases with temperature due to the decrease of…

介观与纳米尺度物理 · 物理学 2009-11-13 V. A. Yampol'skii , Sergey Savel'ev , Z. A. Mayselis , S. S. Apostolov , Franco Nori

Recently, detailed calculations of the excitonic insulator phase model adapted to the case of 1\textit{T}-TiSe$_2$ have been presented. Through the spectral function theoretical photoemission intensity maps can be generated which are in…

强关联电子 · 物理学 2015-05-13 C. Monney , H. Cercellier , F. Clerc , C. Battaglia , E. F. Schwier , C. Didiot , M. G. Garnier , H. Beck , P. Aebi

We measure the temperature dependence of the Raman spectra of metallic and semiconducting nanotubes. We show that the different trend in metallic tubes is due to phonon re-normalization induced by the variation in electronic temperature,…

材料科学 · 物理学 2007-11-29 V. Scardaci , S. Piscanec , Michele Lazzeri , R. Krupke , Francesco Mauri , A. C. Ferrari

A systematic expansion of the many-body master equation for active matter, in which motors power configurational changes as in the cytoskeleton, is shown to yield a description of the steady state and responses in terms of an effective…

软凝聚态物质 · 物理学 2011-08-08 Shenshen Wang , Peter G. Wolynes
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