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Clay minerals are ubiquitous in nature, and the manner in which they interact with their surroundings has important industrial and environmental implications. Consequently, a molecular-level understanding of the adsorption of molecules on…

We propose the atomic structures of the 4H-SiC/SiO$_2$ interface for the $a$, $m$, C, and Si faces after NO annealing. Our proposed structures preferentially form at the topmost layers of the SiC side of the interface, which agrees with the…

材料科学 · 物理学 2024-01-09 Naoki Komatsu , Mizuho Ohmoto , Mitsuharu Uemoto , Tomoya Ono

The electronic conductance of a benzene molecule connected to gold electrodes via thiol, thiolate, and amino anchoring groups is calculated using nonequilibrium Green functions in combination with the fully selfconsistent GW approximation.…

介观与纳米尺度物理 · 物理学 2015-03-18 M. Strange , C. Rostgaard , H. Hakkinen , K. S. Thygesen

The structure of AgCl formed in the course of chlorine adsorption on Ag(111) surface was studied by STM. For the first time atomic resolution STM images of silver chloride were obtained. The silver chloride was detected as small (30-60 A in…

材料科学 · 物理学 2009-10-31 B. V. Andryushechkin , K. N. Eltsov , V. M. Shevlyuga

We discuss the structural and electronic properties of tetragonal CuO grown on SrTiO3(100) by means of hybrid density functional theory. Our analysis explains the anomalously large Cu-O vertical distance observed in the experiments (~2.7 A)…

材料科学 · 物理学 2015-05-19 C. Franchini , Xing-Qiu Chen , R. Podloucky

We have investigated the initial growth of Fe on GaAs(110) by means of density functional theory. In contrast to the conventionally used (001)-surface the (110)-surface does not reconstruct. Therefore, a flat interface and small diffusion…

材料科学 · 物理学 2009-09-01 A. Grünebohm , H. C. Herper , P. Entel

The adsorption properties of isolated H$_{2}$O molecule on stoichiometric and reduced (with on-surface oxygen vacancy) ceria(1111) surfaces at low coverage are theoretically investigated by using density-functional-theory+\emph{U}…

材料科学 · 物理学 2012-02-10 Shuang-Xi Wang , Ping Zhang , Shu-Shen Li

We investigate active electrolytes within the mean-field level of description. The focus is on how the double-layer structure of passive, thermalized charges is affected by active dynamics of all constituting ions. One feature of active…

软凝聚态物质 · 物理学 2018-05-23 Derek Frydel , Rudolf Podgornik

This work presents the experimental demonstration of total absorption by a metal-dielectric metasurface. Following the theoretical proposal [A. D\'iaz-Rubio et al. Phys. Rev. B 89, 245123 (2014)], we fabricated a metasurface consisting of a…

We study the crack patterns developed on desiccating films of an aqueous colloidal suspension of bentonite on a glass substrate. Varying the thickness of the layer $h$ gives the following new and interesting results: (i)We identify a…

软凝聚态物质 · 物理学 2014-12-10 Tajkera Khatun , Tapati Dutta , Sujata Tarafdar

The expression of chirality in adsorption phenomena constitutes an important topic, not only relevant to asymmetric transformations involving solid surfaces, but also to the emergence of homochirality in both terrestrial and…

Well-ordered organic molecular layers on oxide surfaces are key for organic electronics. Using a combination of scanning tunneling microscopy (STM) and non-contact atomic force microscopy (nc-AFM) we probe the structures of copper…

We present a comprehensive study of the adsorption behavior of iron phthalocyanine on the low-index crystal faces of silver. By combining measurements of the reciprocal space by means of photoelectron momentum mapping and low energy…

材料科学 · 物理学 2015-06-17 V. Feyer , M. Graus , P. Nigge , M. Wiessner , R. G. Acres , C. Wiemann , C. M. Schneider , A. Schöll , F. Reinert

Using density-functional theory (DFT) we investigate the incorporation of oxygen directly below the Rh(111) surface. We show that oxygen incorporation will only commence after nearly completion of a dense O adlayer (\theta_tot = 1.0…

材料科学 · 物理学 2009-11-07 M. Veronica Ganduglia-Pirovano , Karsten Reuter , Matthias Scheffler

The adsorption and dissociation of nitrogen molecule on Fe(111) surface is studied by density functional theory calculations. The simulation results show that the molecule needs to acquire parallel orientation with respect to the surface…

材料科学 · 物理学 2014-12-30 Myong-Song Ryang , Nam-Hyok Kim , Song-Jin Im

We present a density functional study of the structural and electronic properties of small Cu_n (n=1,4) aggregates on defect-free MgO(100). The calculations employ a slab geometry with periodic boundary conditions, supercells with up to 76…

材料科学 · 物理学 2009-10-30 V. Musolino , A. Selloni , R. Car

Atomic and electronic structures of TiO_2(110) surface with possible adsorptional, substitutional and interstitial Au or Pt elemental impurities at full and one-sixth monolayer concentrations were investigated by density functional theory…

强关联电子 · 物理学 2012-11-19 Ersen Mete , Oğuz Gülseren , Şinasi Ellialtıoğlu

CO adsorption on an Au monatomic chain is studied within density functional theory in nanocontact geometries as a function of the contact stretching. We compare the bridge and atop adsorption sites of CO, finding that the bridge site is…

介观与纳米尺度物理 · 物理学 2012-05-23 Gabriele Sclauzero , Andrea Dal Corso , Alexander Smogunov

Adsorbed transition metal atoms can have partially filled $d$- or $f$-shells due to strong on-site Coulomb interaction. Capturing all effects originating from electron correlation in such strongly correlated systems is a challenge for…

强关联电子 · 物理学 2018-01-17 Marc Philipp Bahlke , Michael Karolak , Carmen Herrmann

Atomic configurations of two or three Pd substituents on the Au(111) surface are investigated using the first-principles pseudopotential plane wave approach. Pd atoms are found to form second neighborhoods on PdAu(111). The Pd-d band…

材料科学 · 物理学 2007-05-23 D. W. Yuan , X. G. Gong , Ruqian Wu
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