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相关论文: Adsorption structures of phenol on the Si(001)-(2 …

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We study phonon-mediated adsorption and desorption of an electron at dielectric surfaces with deep polarization-induced surface potentials where multi-phonon transitions are responsible for electron energy relaxation. Focusing on…

其他凝聚态物理 · 物理学 2015-05-27 R. L. Heinisch , F. X. Bronold , H. Fehske

The adsorption of a collagen fragment on both a hydrophobic, hydrogen-terminated and a hydrophilic, natively oxidised Si surface is investigated using all-atom molecular dynamics. While favourable direct protein-surface interactions via…

软凝聚态物质 · 物理学 2019-03-27 Daniel J. Cole , Mike C. Payne , Lucio Colombi Ciacchi

Indium oxide offers optical transparency paired with electric conductivity, a combination required in many optoelectronic applications. The most-stable In2O3(111) surface has a large unit cell (1.43 nm lattice constant). It contains a…

Epitaxial graphene, grown on SiC(0001) surface, has been widely studied both experimentally and theoretically. It was found that first epitaxial graphene layer in such structures is a buffer layer i.e. there are no characteristic Dirac…

材料科学 · 物理学 2015-03-13 Jakub Soltys , Jacek Piechota , Michal Lopuszynski , Stanislaw Krukowski

We use the density functional method to examine the properties of the nonuniform (two-phase) fluid of two-level atoms, a part of which is excited. Basing on the analysis of the equation of state of a gas of two-level atoms, a part of which…

软凝聚态物质 · 物理学 2007-05-23 Oleg Derzhko , Vasyl Myhal

We have studied the adsorption of bisphenol-A-polycarbonate (BPA-PC) on the alpha-Al2O3(0001) surface using density-functional theory (DFT) with van der Waals (vdW) corrections. The BPA-PC polymer can be divided into its chemical fragments…

材料科学 · 物理学 2012-05-30 Janne Blomqvist , Petri Salo

Using first-principles calculations, we systematically study the potential energy surfaces and dissociation processes of the hydrogen molecule on the Mg(0001) surface. It is found that during the dissociative adsorption process with the…

材料科学 · 物理学 2015-05-13 Yanfang Li , Yu Yang , Bo Sun , Hong-Zhou Song , Yinghui Wei , Ping Zhang

Photonic band structure of metal-dielectric and semiconductor-dielectric layered structures are studied in the presence of a strong absorption. It is shown that absorption can enlarge some gaps by as much as 50%.

凝聚态物理 · 物理学 2007-05-23 Alexander Moroz , Adriaan Tip , Jean-Michel Combes

We present a first-principles study of the structural, electronic, and optical properties of hydrogenated amorphous silicon (a-Si:H). To this end, atomic configurations of a-Si:H with 72 and 576 atoms respectively are generated using…

材料科学 · 物理学 2017-03-31 Philippe Czaja , Urs Aeberhard , Massimo Celino , Simone Giusepponi , Michele Gusso

By means of density functional theory we have undertaken a structural, electronic and magnetic survey of the adsorption of the Fe_xPt_y(x,y=<4) clusters on MgO (001) surface under the generalized gradient approximation. We have tested…

材料科学 · 物理学 2015-06-23 Ramon Cuadrado , Roy W. Chantrell

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

Using helium-3 atom scattering, we have studied the adsorption kinetics, the structure and the diffusional dynamics of atomic hydrogen on the surface of a graphene monolayer on Ni(111). Diffraction measurements reveal a 4$^\circ$ rotated…

介观与纳米尺度物理 · 物理学 2022-12-15 Emanuel Bahn , Anton Tamtögl , John Ellis , William Allison , Peter Fouquet

In this work we investigate the electronic properties of mercaptocarboxylic acids with several carbon chain lengths adsorbed on ZnO-(10-10) surfaces via density functional theory calculations using semi-local and hybrid exchange-correlation…

材料科学 · 物理学 2018-10-05 Dennis Franke , Michael Lorke , Thomas Frauenheim , Andrea L. daRosa

Electron stimulated desorption of cyclopentene from the Si(100)-2x1 surface is studied experimentally with cryogenic UHV STM and theoretically with transport, electronic structure, and dynamical calculations. Unexpectedly for a saturated…

介观与纳米尺度物理 · 物理学 2016-08-31 N. L. Yoder , N. P. Guisinger , M. C. Hersam , R. Jorn , C. -C. Kaun , T. Seideman

To investigate chemical reactivity of Cu atomic-scale structures, we performed simulations based on the generalized gradient approximation in the density functional theory. An atomic layer of Cu forming a triangular lattice (TL) was found…

材料科学 · 物理学 2011-05-16 S Nogami , H Kizaki , K Kusakabe

Graphynes are 2D porous structures deriving from graphene featuring triangular and regularly distributed subnanometer pores, which may be exploited to host small gaseous species. First principles adsorption energies of molecular hydrogen…

化学物理 · 物理学 2015-10-06 Massimiliano Bartolomei , Estela Carmona-Novillo , Giacomo Giorgi

Our ab initio calculations of CO adsorption on several low and high miller index surfaces of Cu show that the adsorption energy increases as the coordination of the adsorption site decreases from 11 to 6, in qualitative agreement with…

材料科学 · 物理学 2013-05-29 Faisal Mehmood , Abdelkader Kara , Talat S. Rahman , Klaus Peter Bohnen

This study explores atomic and molecular adsorption on a number of early transition-metal carbides (TMC's) by means of density-functional theory calculations. Trend studies are conducted with respect to both period and group in the periodic…

材料科学 · 物理学 2012-05-14 Aleksandra Vojvodic , Carlo Ruberto , Bengt I. Lundqvist

We use scanning tunneling microscopy (STM) and Auger electron spectroscopy to study the behavior of adsorbed phosphine (PH$_{3}$) on Si(001), as a function of annealing temperature, paying particular attention to the formation of the Si-P…

材料科学 · 物理学 2007-05-23 N. J. Curson , S. R. Schofield , M. Y. Simmons , L. Oberbeck , J. L. O'Brien , R. G. Clark

In this work, we investigate the adsorption of a single cobalt atom (Co) on graphene by means of the complete active space self-consistent field approach, additionally corrected by the second-order perturbation theory. The local structure…

材料科学 · 物理学 2012-08-15 A. N. Rudenko , F. J. Keil , M. I. Katsnelson , A. I. Lichtenstein