Concept

Surface

Related publications (374)

Orbital selective overlayer-substrate hybridization in a Pb monolayer on Ag(111)

Klaus Kern, Harald Brune, Frédéric Mila, Marco Grioni, Daniela Pacilè, Thomas Gloor, Stephan Fedrigo

The electronic structure of a Pb overlayer on Ag(111) has been studied by angle-resolved photoemission spectroscopy. We identify three p bands. While the p(xy) bands are sharp and closely resemble the corresponding bands of a free-standing Pb layer, the p( ...

2006

Atomistic Modeling Study of Surface Segregation in Nd:YAG

Paul Bowen, Ulrich Aschauer

This study investigates the composition of free surfaces of neodymium-doped yttrium–aluminum–garnet, using energy minimization techniques. Atomistic modeling shows that the dopant is concentrated in a zone within 0.5 nm ̊of the surface, the enrichment fact ...

2006

The surface Laplacian operator of the potentials on a bounded volume conductor has a unique inverse

In the discussion on the use of the surface Laplacian (SL) of the distribution of bioelectric potentials on the body surface, the question remained open whether a complete specification of the SL of the potential over the surface bounding a volume conducto ...

2006

MEMS-based nanopatterning: new challenges and opportunities for Materials Science

Jürgen Brugger

Micro-mechanical systems are exquisite tools for high-resolution surface patterning. As an alternative to traditional photolithography, they can be used for local material deposition at the sub-100 nm scale. This can be either done by means of liquid dispe ...

2006

A level set discontinuous Galerkin method for free surface flows

Jan Sickmann Hesthaven

We present a discontinuous Galerkin method on a fully unstructured grid for the modeling of unsteady incompressible fluid flows with free surfaces. The surface is modeled by embedding and represented by a level set. We discuss the discretization of the flo ...

Elsevier2006

Cellular toxicity of carbon-based nanomaterials

László Forró, Arnaud Magrez, Sandor Kasas, Jin Won Seo

The cellular toxicity of carbon-based nanomaterials was studied as a function of their aspect ratio and surface chemistry. These structures were multiwalled carbon nanotubes, carbon nanofibers, and carbon nanoparticles. Their toxicity was tested in vitro o ...

2006

Directed assembling of gold nanoparticles using Van der Waals interactions

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart

In the last past years, many promising applications of nanoparticles in quantum electronics such as nanocrystal memories, chemical sensors or nanodevices based on single electron tunneling and Coulomb blockade effects have attracted much attention. Nanopar ...

2006

Electronic structure of an ordered Pb/Ag(111) surface alloy: Theory and experiment

Marco Grioni, Christian Reinhard Ast, Luca Moreschini, Daniela Pacilè

We have studied by angle-resolved photoelectron spectroscopy (ARPES) the band structure of the ordered surface alloy obtained by the deposition of 0.33 monolayers of Pb on the Ag(111) surface. We observe several dispersing features which are well described ...

2006

Selective etching of n-InP(1 0 0) triggered at surface dislocations induced by nanoscratching

Christophe Ballif, Johann Michler

This work investigates selective dissolution of n-InP(1 0 0) triggered by surface defects. Nanometer size grooves were produced by sensitizing an InP surface with a mechanical contact patterning technique, i.e. nanoscratching at low loading forces at the t ...

2006

Surface reaction mechanism of atomic layer deposition of HfO2 on Ge(100)-2×1: A density functional theory study

Wei Chen, Min Xu, Jie Ren

Density functional theory is employed to investigate atomic layer deposition mechanism of HfO2, on Ge(I 0 0)-2 x I surface. Both the HfCl4 and H2O half-reactions proceed through an analogous trapping-mediated mechanism. The neighboring hydroxyl in the reac ...

Elsevier2006

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