Results 31 to 40 of about 454 (65)

Re-entrant Layer-by-Layer Etching of GaAs(001)

, 1995
We report the first observation of re-entrant layer-by-layer etching based on {\it in situ\/} reflection high-energy electron-diffraction measurements. With AsBr$_3$ used to etch GaAs(001), sustained specular-beam intensity oscillations are seen at high ...
B. A. Joyce, B. Poelsema, B. Poelsema, D. D. Vvedensky, E. Chason, H.-J. Ernst, J. Villain, J. Zhang, P. Bedrossian, P. Bedrossian, P. Bedrossian, P. Šmilauer, P. Šmilauer, P. Šmilauer, P. Šmilauer, P. Šmilauer, R. Kunkel, T. Kaneko, T. Kawamura, T. Michely, T. Michely, T. Michely, T. Ohno, T. Shitara, W. T. Tsang, W. T. Tsang   +25 more
core   +1 more source

Site determination and thermally assisted tunneling in homogenous nucleation [PDF]

, 2003
A combined low-temperature scanning tunneling microscopy and density functional theory study on the binding and diffusion of copper monomers, dimers, and trimers adsorbed on Cu(111) is presented.
D. M. Eigler, G. Meyer, G. Wahnström, Gerhard Meyer, Jascha Repp, Karl-Heinz Rieder, P. Hyldgaard, Per Hyldgaard, S. C. Wang, S. C. Wang, W. Wulfhekel   +10 more
core   +2 more sources

Reversible Transition Between Thermodynamically Stable Phases with Low Density of Oxygen Vacancies on SrTiO$_3$(110) Surface

, 2011
The surface reconstruction of SrTiO$_3$(110) is studied with scanning tunneling microscopy and density functional theory (DFT) calculations. The reversible phase transition between (4$\times$1) and (5$\times$1) is controlled by adjusting the surface ...
Guo, Jiandong, Guo, Qinlin, Li, Fengmiao, Meng, Sheng, Sun, Yongbao, Wang, Zhiming, Yang, Jinlong   +6 more
core   +1 more source

Strain-Dependence of Surface Diffusion: Ag on Ag(111) and Pt(111)

, 1997
Using density-functional theory with the local-density approximation and the generalized gradient approximation we compute the energy barriers for surface diffusion for Ag on Pt(111), Ag on one monolayer of Ag on Pt(111), and Ag on Ag(111). The diffusion
%G. Rosenfeld, 1. This, A. Khein, A. P. Seitsonen, B. D. Yu, C. Ratsch, C. Roland, D. M. Ceperley, H. Brune, H. Brune, H. J. Monkhorst, H. T. Dobbs, J. A. Rodriguez, J. P. Perdew, J. P. Perdew, M. Scheffler, M. Scheffler, N. Troullier, N. Troullier, P. J. Feibelman   +19 more
core   +1 more source

Island Size Selectivity during 2D Ag Island Coarsening on Ag (111)

, 2010
We report on early stages of submonolayer Ag island coarsening on Ag(111) surface at room temperature ($300$ K) carried out using realistic kinetic Monte Carlo (KMC) simulations.
Abdelkader Kara, Giridhar Nandipati, Kara A, Nandipati G, Nandipati G, Ostwald W, Syed Islamuddin Shah, Talat S Rahman   +7 more
core   +1 more source

Facet Formation in the Negative Quenched Kardar-Parisi-Zhang Equation

, 1998
The quenched Kardar-Parisi-Zhang (QKPZ) equation with negative non-linear term shows a first order pinning-depinning (PD) transition as the driving force $F$ is varied.
B. Kahng, D. Ertas, D. Ertas, D. Kessler, D. Kim, D.S. Fisher, G. Grüner, H. Jeong, H. Jeong, H. Leschhorn, K. Sneppen, L.-H. Tang, L.-H. Tang, L.A. Amaral, M. Kardar, M.A. Rubio, R. Bausch, R. Bruinsma, S.V. Buldyrev, Z. Csahók   +19 more
core   +1 more source

Surface diffusion coefficients by thermodynamic integration: Cu on Cu(100)

, 1998
The rate of diffusion of a Cu adatom on the Cu(100) surface is calculated using thermodynamic integration within the transition state theory. The results are found to be in excellent agreement with the essentially exact values from molecular-dynamics ...
A. F. Voter, B. Roux, D. E. Sanders, D. Maroudas, E. Kaxiras, E. Paci, G. Boisvert, G. Boisvert, G. Boisvert, G. Ciccotti, G. L. Kellogg, Ghyslain Boisvert, L. B. Hansen, Laurent J. Lewis, M. Bockstedte, Normand Mousseau, P. V. Kumar, S. Glasstone, S. M. Foiles, S. Nosé, T. Ala-Nissila, U. Kürpick, U. Kürpick, W. Meyer   +23 more
core   +1 more source

Logarithmic Clustering in Submonolayer Epitaxial Growth

, 1997
We investigate submonolayer epitaxial growth with a fixed monomer flux and irreversible aggregation of adatom islands due to their effective diffusion.
Krapivsky, P. L., Mendes, J. F. F., Redner, S.   +2 more
core   +2 more sources

Hematoma cavity separation and neomembrane thickness are potential triggers of recurrence of chronic subdural hematoma. [PDF]

BMC Surg, 2022
Liu H, Yan R, Xie F, Richard SA.
europepmc   +1 more source

First order phase transition in a 1+1-dimensional nonequilibrium wetting process

, 1999
A model for nonequilibrium wetting in 1+1 dimensions is introduced. It comprises adsorption and desorption processes with a dynamics which generically does not obey detailed balance.
A. L. Barabási, A. L. Toom, A. Politi, C. Godréche, C. H. Bennett, D. M. Kroll, D. Mukamel, D. S. Fisher, E. Brézin, H. Hinrichsen, H. Hinrichsen, J. M. J. van Leeuwen, M. A. Muñoz, M. Kardar, R. Blossey, R. K. P. Zia, R. Livi, S. Dietrich, T. W. Burkhardt, U. Alon, U. Alon, Y. Tu   +21 more
core   +1 more source