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相关论文: Cs adsorption on Si(001) surface: ab initio study

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Cesium adsorption on 2x4 GaAs (001) was studied by photoemission and low energy electron diffraction. The different Cs induced changes of the As 3d and Ga 3d core level spectra show that charge transfer is almost complete for Ga surface…

材料科学 · 物理学 2015-05-14 O. E. Tereshchenko , D. Paget , P. Chiaradia , F. Wiame , A. Taleb-Ibrahimie

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 investigate the work function (WF) variation of different Au crystallographic surface orientations with carbon atom adsorption. Ab-initio calculations within density-functional theory are performed on carbon deposited (100), (110), and…

化学物理 · 物理学 2019-04-18 H. Z. Jooya , X. Fan , K. S. McKay , D. P. Pappas , D. A. Hite , H. R. Sadeghpour

The geometric, electronic, energetic, and dynamic properties of 1-propanol adsorbed on the Si(001)-2x1 surface are studied from first principles by use of a slab approach. The 1-propanol molecule initially interacts with the Si surface…

材料科学 · 物理学 2009-11-11 Jian-Ge Zhou , Frank Hagelberg , Chuanyun Xiao

This paper presents a DFT study for phosphine adsorption on a Si(001)-2$\times$1 surface covered by a chlorine monolayer, including adsorption on local defects, i.e. mono- and bivacancies in the adsorbate layer (Cl, Cl$_2$), and combined…

材料科学 · 物理学 2019-01-04 Tatiana V. Pavlova , Georgy M. Zhidomirov , Konstantin N. Eltsov

The adsorption of CO molecules at the Ca3Ru2O7(001) surface was studied using low-temperature scanning tunneling microscopy (STM) and density functional theory (DFT). Ca3Ru2O7 can be easily cleaved along the (001) plane, yielding a smooth,…

Adsorption and catalytic properties of the polar (111) surface of transition-metal carbides (TMC's) are investigated by density-functional theory. Atomic and molecular adsorption are rationalized with the concerted-coupling model, in which…

计算物理 · 物理学 2010-05-05 Aleksandra Vojvodic , Anders Hellman , Carlo Ruberto , Bengt I. Lundqvist

Adsorption of acetylene on Si(100) is studied from first principles. We find that, among a number of possible adsorption configurations, the lowest-energy structure is a ``bridge'' configuration, where the C$_2$H$_2$ molecule is bonded to…

凝聚态物理 · 物理学 2009-10-31 Pier Luigi Silvestrelli , Flavio Toigo , Francesco Ancilotto

The variation of the work function upon carbon adsorption on the reconstructed Au(110) surface is measured experimentally and compared to density functional calculations. The adsorption dynamics is simulated with ab-initio molecular…

原子物理 · 物理学 2018-08-08 H. Z. Jooya , K. S. McKay , E. Kim , P. F. Weck , D. P. Pappas , D. A. Hite , H. R. Sadeghpour

We investigate the adsorption of chlorine on the Cu(111) surface with full potential all-electron density functional calculations. Chlorine adsorption at the fcc hollow sites is slightly preferred over that at the hcp hollow. The adsorption…

材料科学 · 物理学 2009-10-31 K. Doll , N. M. Harrison

Using first-principles calculations, we systematically study the adsorption behavior of a single molecular H$_{2}$O on the Be(0001) surface. We find that the favored molecular adsorption site is the top site with an adsorption energy of…

材料科学 · 物理学 2015-05-27 Shuang-Xi Wang , Peng Zhang , Jian Zhao , Shu-Shen Li , Ping Zhang

The vibrational and structural properties of a single-domain Si(001)-(2x1) surface upon ethylene adsorption have been studied by density functional cluster calculations and high-resolution electron energy loss spectroscopy. The detailed…

材料科学 · 物理学 2010-05-03 Krassimir L. Kostov , Rachel Nathaniel , Tzonka Mineva , Wolf Widdra

In this work, we have studied theoretically the effects of gold adsorption on the Al(001) surface, using {\it ab initio} pseudo-potential method in the framework of the density functional theory. Having found the hollow sites at the Al(001)…

材料科学 · 物理学 2009-11-13 N. Zare Dehnavi , M. Payami

The adsorption of C60 on Si(111) has been studied by means of first-principles density functional calculations. A 2x2 adatom surface reconstruction was used to simulate the terraces of the 7x7 reconstruction. The structure of several…

This paper reports state-of-the-art electronic structure calculations of La adsorption on the Si(001) surface. We predict La chains in the low coverage limit, which condense in a stable phase at a coverage of 1/5 monolayer. At 1/3 monolayer…

材料科学 · 物理学 2007-05-23 Christopher R. Ashman , Clemens J. Foerst , Karlheinz Schwarz , Peter E. Bloechl

Chemisorption of CO on the stepped Cu(211) surface is studied within ab-initio density functional theory (DFT) and scanning tunneling microscopy (STM) imaging as well as manipulation experiments. Theoretically we focus on the experimentally…

材料科学 · 物理学 2009-11-10 Marek Gajdos , Andreas Eichler , Jurgen Hafner , Gerhard Meyer , Karl-Heinz Rieder

The first principles density functional theory (DFT) calculations have been used to investigate the atomic and electronic properties of thiadiazole adsorption on the Si(001) surface. A (2x2) reconstructed clean substrate surface has been…

材料科学 · 物理学 2018-05-07 Cagil Kaderoglu

Surface adsorption of C$_{60}$ affects its chemical and electronic properties. Numerous studies have reported observation of bright and dark fullerenes on metal surfaces that suggest extensive surface reconstruction, however, the…

材料科学 · 物理学 2021-12-01 Leonardo Forcieri , Simon Taylor , Philip Moriarty , Samuel P Jarvis

First-principles density-functional theory and supercell models are employed to calculate the adsorption of water molecules on the Cu(100) surface. In agreement with the experimental observations, the calculations show that a H2O molecule…

材料科学 · 物理学 2009-09-29 Sanwu Wang , Yanzhao Cao , P. A. Rikvold

The adsorption of oxygen on the Ag(001) is investigated by means of density functional techniques. Starting from a characterization of the clean silver surfaces oxygen adsorption in several modifications (molecularly, on-surface,…

材料科学 · 物理学 2009-11-10 M. Gajdos , A. Eichler , J. Hafner