Results 81 to 90 of about 845,911 (248)

Surface Preparation of InAs (110) Using Atomic Hydrogen

Sultan Qaboos University Journal for Science, 2002
Atomic hydrogen cleaning has been used to produce structurally and electronically damage-free InAs(110) surfaces.  X-ray photoelectron spectroscopy (XPS) was used to obtain chemical composition and chemical state information about the surface, before and
T.D. Veal, C.F. McConville, S.H. Al-Harthi   +2 more
doaj   +1 more source

Real-space study of the growth of magnesium on ruthenium

, 2013
The growth of magnesium on ruthenium has been studied by low-energy electron microscopy (LEEM) and scanning tunneling microscopy (STM). In LEEM, a layer-by-layer growth is observed except in the first monolayer, where the completion of the first layer in
de la Figuera, Juan, Herranz, Tirma, McCarty, Kevin F., Santos, Benito   +3 more
core   +2 more sources

Multiferroic heterostructures for spin filter application - an ab initio study

, 2015
Novel imaging spin-filter techniques, which are based on low energy electron diffraction, are currently of high scientific interest. To improve the spin-detection efficiency a variety of new materials have been introduced in recent years.
Borek, Stephan, Braun, Jürgen, Ebert, Hubert, Minár, Ján   +3 more
core   +1 more source

Tailoring metal–organic hybrid interfaces: heteromolecular structures with varying stoichiometry on Ag(111)

New Journal of Physics, 2015
The physical properties of interfaces between organic semiconductors and metal surfaces crucially influence the performance of organic electronic devices. In order to enable the tailoring of such metal–organic hybrid interfaces we study the adsorption of
Benjamin Stadtmüller, Caroline Henneke, Serguei Soubatch, F Stefan Tautz, Christian Kumpf   +4 more
doaj   +1 more source

Effect of water cooling assistance on fatigue behavior of laser welded QP980 steel

Journal of Materials Research and Technology
Quenching and partitioning 980 (QP980) steel has been applied to new energy vehicles, but even laser welding joints show poor fatigue performance. In this study, water-cooling assistance is applied to improve fatigue resistance of welded joints. Hardness,
Chunguo Zhang, Jiazhuang Tian, Shanglu Yang, Shengyong Mu   +3 more
doaj   +1 more source

Ultrahigh-brightness 50 MeV electron beam generation from laser wakefield acceleration in a weakly nonlinear regime

Matter and Radiation at Extremes
We propose an efficient scheme to produce ultrahigh-brightness tens of MeV electron beams by designing a density-tailored plasma to induce a wakefield in the weakly nonlinear regime with a moderate laser energy of 120 mJ.
Zhongtao Xiang, Changhai Yu, Zhiyong Qin, Xuhui Jiao, Jiahui Cheng, Qiaoxuan Zhou, Gatie Axi, Jianghua Jie, Ya Huang, Jintan Cai, Jiansheng Liu   +10 more
doaj   +1 more source

Transition from silicene monolayer to thin Si films on Ag(111): comparison between experimental data and Monte Carlo simulation

Beilstein Journal of Nanotechnology, 2018
Scanning tunneling microscopy (STM), Auger electron spectroscopy (AES) and low energy electron diffraction have been used to follow the growth of Si films on Ag(111) at various temperatures. Using a simple growth model, we have simulated the distribution
Alberto Curcella, Romain Bernard, Yves Borensztein, Silvia Pandolfi, Geoffroy Prévot   +4 more
doaj   +1 more source

Theory of Low-Energy Electron Diffraction

Zeitschrift für Naturforschung A, 1967
A method for calculating the intensities of diffracted waves in low energy electron diffraction by crystals is proposed. The elastic multiple scattering is fully taken into account. The cellular method of KOHN and ROSTOKER in the band theory of metals is applied to the integral equation of the scattering by two dimensional lattices, particularly by ...
openaire   +1 more source

Theory of Low-Energy Electron Diffraction

Zeitschrift für Naturforschung A, 1968
The method of calculating the intensities of waves in low-energy electron diffraction (LEED) which was applied in Part I to monatomic layers is generalized and applied to complex monolayers and multilayers. Using the “muffin-tin” model, which is widely used in the band theory of metals, the wave function is expanded in spherical harmonics on the ...
openaire   +1 more source

Ultrafast electron dynamics upon above band-gap excitation in epitaxial LaFeO3(001) thin films

New Journal of Physics
Strong electron correlations in perovskite oxides give rise to rich and often unexpected electronic phenomena. In this study, we present a comprehensive surface-science investigation of epitaxial thin films of the charge-transfer insulator LaFeO _3 (001).
Friederike Elisa Wührl, Antonia Rieche, Anne Oelschläger, Kathrin Dörr, Wolf Widdra   +4 more
doaj   +1 more source