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The influence of microwave radiation on the DC-magnetoresistance of 2D-electrons is studied in the regime beyond the recently discovered zero resistance states when the cyclotron frequency exceeds the radiation frequency. Radiation below 30…

介观与纳米尺度物理 · 物理学 2009-11-10 S. I. Dorozhkin , J. H. Smet , V. Umansky , K. von Klitzing

We present a first-principles study of the atomic hydrogen adsorption onto the Be(10\={1}0) thin film. There are two types of Be(10\={1}0) surfaces according to the interlayer spacing between the surface and its nearest-neighbor layer. We…

材料科学 · 物理学 2007-05-23 Ping Zhang , Hong-Zhou Song

The effect of the electron temperature on both the light absorption and the scattering by metal nanoparticles (MNs) with excitation of the surface plasmon electron vibrations is studied in the framework of the kinetic theory. The formulae…

介观与纳米尺度物理 · 物理学 2013-11-25 N. I. Grigorchuk

In this study we employ Density Functional Theory (DFT) methods to investigate the surface energy barrier for electron emission (surface barrier) and thermodynamic stability of Ba and Ba-O species adsorption under conditions of high…

材料科学 · 物理学 2016-07-08 Ryan M. Jacobs , John H. Booske , Dane Morgan

A microelectromechanical oscillator with a 0.73 $\mu$m gap structure is employed to probe the surface Andreev bound states in superfluid $^3$He-B. The surface specularity of the oscillator is increased by preplating it with 1.6 monolayers…

其他凝聚态物理 · 物理学 2023-08-02 W. G. Jiang , C. S. Barquist , K. Gunther , Y. Lee , H. B. Chan

We analyze the absorption of microwaves by the Heisenberg-Ising chain combining exact calculations, based on the integrability of the model, with numerical calculations. Within linear response theory the absorbed intensity is determined by…

强关联电子 · 物理学 2012-04-24 M. Brockmann , F. Göhmann , M. Karbach , A. Klümper , A. Weiße

The accurate determination of the position-dependent energy fluence rate of scattered light (which is proportional to the energy density) is crucial to the understanding of transport in anisotropically scattering and absorbing samples, such…

光学 · 物理学 2024-09-23 Ozan Akdemir , Minh Duy Truong , Alfredo Rates , Ad Lagendijk , Willem L. Vos

Ta$_{3}$N$_{5}$ is among the most intensively studied photoanode materials for solar-driven water oxidation, yet its performance often remains limited by short carrier lifetimes and defect mediated recombination. Although transient…

The distribution of electron density in the quantum Hall liquid is considered in the presence of macroscopic density gradient caused by side electrodes or inhomogeneous doping. In this case different Landau levels are occupied in different…

介观与纳米尺度物理 · 物理学 2009-10-31 A. L. Efros

We have demonstrated efficient intersubband electroabsorption in InGaAs/InAlGaAs/InAlAs step quantum wells grown by metal-organic vapor phase epitaxy (MOVPE). An absorption modulation of 6 dB at $\lambda=6.0 \mu$m due to Stark shift of the…

光学 · 物理学 2007-11-01 P. Holmström , P. Jänes , U. Ekenberg , L. Thylén

The absorption coefficient for surface acoustic wave $\Gamma$ and variation in the wave velocity $\Delta V/V$ were measured in GaAs/AlGaAs heterostructures; the above quantities are related to interaction of the wave with two-dimensional…

介观与纳米尺度物理 · 物理学 2009-10-31 I. L. Drichko , A. M. Diakonov , I. Yu. Smirnov , A. I. Toropov

We model s- and d-wave ceramic superconductors with a three-dimensional lattice of randomly distributed Josephson junctions with finite self-inductance. The field and temperature dependences of the microwave absoption are obtained by…

超导电性 · 物理学 2009-11-07 Mai Suan Li

We use a simple generic model to study the desorption of atoms from a solid surface in contact with a liquid, by using a combination of Monte Carlo and molecular dynamics simulations. The behavior of the system depends on two parameters:…

化学物理 · 物理学 2022-11-16 Krishna Jaiswal , Horia Metiu , Vishal Agarwal

A microscopic model of surface roughness (SR) scattering in inversion layers of bulk-MOSFETs based on Ando's linear model is proposed. Taking into account the stochastic nature of roughness position induced by discontinuity of the spatial…

介观与纳米尺度物理 · 物理学 2026-04-27 Nobuyuki Sano

Microwave heating of methane hydrate is investigated with electrostatic molecular dynamics simulations by the SPC/E water model. The structure I of methane hydrate is constructed. When the methane hydrate with a density of 0.91…

化学物理 · 物理学 2023-11-27 Motohiko Tanaka , Motoyasu Sato , Shin Nakatani

Density-density response functions are evaluated for nondegenerate multisubband electron systems in the random-phase approximation for arbitrary wave number and subband index. We consider both quasi-two-dimensional and quasi-one-…

强关联电子 · 物理学 2009-10-31 Sviatoslav S. Sokolov , Nelson Studart

Many fundamental processes of structural changes at surfaces occur on a pico- or femtosecond time scale. In order to study such ultra-fast processes, we have combined modern surface science techniques with fs-laser pulses in a pump-probe…

介观与纳米尺度物理 · 物理学 2023-12-01 Michael Horn von Hoegen

A theoretical framework incorporating atomic-level interfacial details is derived to include the electronic structure of buried interfaces and describe the behavior of charge carriers in heterostructures in the presence of finite…

材料科学 · 物理学 2026-04-01 Anis Attiaoui , Gabriel Fettu , Samik Mukherjee , Matthias Bauer , Oussama Moutanabbir

Fundamental interest for 2D electron gas (2DEG) systems has been recently renewed with the advent of 2D materials and their potential high-impact applications in optoelectronics. Here, we investigate a 2DEG created by the electron transfer…

材料科学 · 物理学 2017-09-18 F. Cheynis , S. Curiotto , F. Leroy , P. Müller

In this work we report on Hall effect, resistivity and thermopower measurements in n-type indium selenide at room temperature under either hydrostatic and quasi-hydrostatic pressure. Up to 40 kbar (= 4 GPa), the decrease of carrier…

凝聚态物理 · 物理学 2009-10-28 D. Errandonea , A. Segura , J. F. Sánchez-Royo , V. Muñoz , P. Grima , A. Chevy , C. Ulrich