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相关论文: A Density Functional Study of Atomic Hydrogen Adso…

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We present a detailed study of the adsorption of CO on Cu, Rh, and Pt (111) surfaces in top and hollow sites. The study has been performed using the local density approximation, the gradient corrected functional PBE, and the hybrid…

材料科学 · 物理学 2011-12-30 A. Stroppa , K. Termentzidis , J. Paier , G. Kresse , J. Hafner

We report the emergence of adsorption-induced magnetism from heterohelicene molecules on a non-magnetic Cu(100) surface. Spin-polarized low-energy electron microscopy (SP-LEEM) measurements reveal spin-dependent electron reflectivity for…

The structural, vibrational, energetic and electronic properties of hydrogen at the stoichiometric RuO2(110) termination are studied using density functional theory. The oxide surface is found to stabilize both molecular and dissociated H2.…

材料科学 · 物理学 2007-05-23 Qiang Sun , Karsten Reuter , Matthias Scheffler

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

The presence of sulfur atoms on the Pd(100) surface is known to hinder the dissociative adsorption of hydrogen. Using density-functional theory and the full-potential linear augmented plane-wave method, we investigate the potential energy…

凝聚态物理 · 物理学 2009-10-30 C. M. Wei , A. Gross , M. Scheffler

We study the atomic oxygen adsorption on Pb(111) surface by using density-functional theory within the generalized gradient approximation and a supercell approach. The atomic and energetic properties of purely on-surface and subsurface…

材料科学 · 物理学 2009-11-13 Bo Sun , Ping Zhang , Zhigang Wang , Suqing Duan , Xian-Geng Zhao , Xuchun Ma , Qi-Kun Xue

Plateaus in water adsorption isotherms on hydroxylated BeO surfaces suggest significant differences between the hydroxylated (100) and (001) surface structures and reactivities. Density functional theory structures and energies clarify…

化学物理 · 物理学 2007-05-23 Maria A. Gomez , Lawrence R. Pratt , Joel D. Kress , D. Asthagiri

Using density functional theory we show that an applied electric field substantially improves the hydrogen storage properties of a BN sheet by polarizing the hydrogen molecules as well as the substrate. The adsorption energy of a single H2…

材料科学 · 物理学 2016-12-28 J. Zhou , Q. Wang , Q. Sun , P. Jena , X. S. Chen

Density functional theory has been used to study the adsorption of molecular H2 on a graphene layer. Different adsorption sites on top of atoms, bonds and the center of carbon hexagons have been considered and compared. We conclude that the…

化学物理 · 物理学 2009-11-06 J. S. Arellano , L. M. Molina , A. Rubio , J. A. Alonso

We report on results of a theoretical study of the adsorption process of a single carbon oxide molecule on a Platinum (111) surface. A four-component relativistic density functional method was applied to account for a proper description of…

原子与分子团簇 · 物理学 2009-11-07 D. Geschke , T. Bastug , T. Jacob , S. Fritzsche , W. -D. Sepp , B. Fricke

We describe experiments with spin-polarized atomic hydrogen gas adsorbed on liquid $^{4}$He surface. The surface gas density is increased locally by thermal compression up to $5.5\times10^{12}$ cm$^{-2}$ at 110 mK. This corresponds to the…

其他凝聚态物理 · 物理学 2009-11-11 J. Järvinen , J. Ahokas , S. Vasiliev

The adsorption of the chiral molecule lactic acid on chiral Pt surfaces is studied by Density Functional Theory calculations. First we study the adsorption of L-lactic acid on the flat Pt(111) surface. Using the oPBE-vdW functional which…

材料科学 · 物理学 2013-10-04 Jörn-Holger Franke , Daniel S. Kosov

While the diffusion of hydrogen on silicon surfaces has been relatively well characterised both experimentally and theoretically, the diffusion around corners between surfaces, as will be found on nanowires and nanostructures, has not been…

材料科学 · 物理学 2014-05-19 Richard Smith , Veronika Brazdova , David R. Bowler

The adsorption and dissociation of isolated water molecule on Zr(0001) surface are theoretically investigated for the first time by using density-functional theory calculations. Two kinds of adsorption configurations with almost the same…

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

We report the detection of 21-cm and H2 absorption lines in the same DLA system (log N(HI)=21.36+-0.10) at zabs=3.17447 towards SDSSJ133724+315254 (z=3.174). We estimate the spin temperature of the gas to be, Ts~600 K, intermediate between…

宇宙学与河外天体物理 · 物理学 2015-05-18 R. Srianand , N. Gupta , P. Petitjean , P. Noterdaeme , C. Ledoux

The success of density functional theory for the description of the adsorption of atoms on surfaces is well established, and based on recent calculations using gradient corrections, it has been shown that it also describes well the…

mtrl-th · 物理学 2008-02-03 Catherine Stampfl

Using first-principles calculations, we systematically study the potential energy surfaces and dissociation processes for hydrogen molecules on the clean and hydrogen-preadsorbed Be(0001) surfaces. It is found that the most energetically…

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

We apply Density Functional Theory (DFT) and the DFT+U technique to study the adsorption of transition metal porphine molecules on atomistically flat Au(111) surfaces. DFT calculations using the Perdew-Burke-Ernzerhof (PBE) exchange…

Adsorption of ammonia at NH3/NH2/H covered GaN(0001) surface was analyzed using results of ab initio calculations. The whole configuration space of partially NH3/NH2/H covered GaN(0001) surface was divided into zones differently pinned…

材料科学 · 物理学 2016-11-09 Pawel Kempisty , Stanislaw Krukowski

Based on the van der Waals density functional theory (vdW-DFT)+U scheme, we carry out the ab initio molecular dynamics (AIMD) study of the interaction dynamics for H$_{2}$ impingement against the stoichiometric PuO$_{2}$(111), the reduced…

材料科学 · 物理学 2015-06-19 Bo Sun , Haifeng Liu , Haifeng Song , Guangcai Zhang , Hui Zheng , Xian-Geng Zhao , Ping Zhang