Zobrazeno 1 - 10
of 133
pro vyhledávání: '"W. Schommers"'
Autor:
Constantin Politis, D. Trachylis, S. Grammatikopoulos, W. Schommers, Efstathios I. Meletis, Spiridon D. Pappas, M. J. Velgakis, Panagiotis Poulopoulos
Publikováno v:
Journal of Nano Research. 25:61-66
Cu and Ni from CuNi metallic targets (composition 20-80 and 46-54 at.%) are deposited on Corning glass, quartz and the native oxide of Si (100) wafers by direct current magnetron sputtering in a high vacuum chamber (base pressure 5 x 10-5 mbar). The
Autor:
W. Schommers, P.v. Blanckenhagen
During the last decade, surface research has clearly shifted its interest from the macroscopic to the microscopic scale; a wealth of novel experimental techniques and theoretical methods have been applied and developed successfully. The Topics volume
Autor:
W. Schommers
Publikováno v:
Applied Physics A: Materials Science & Processing. 68:187-196
We discuss structural and dynamical properties of nano-clusters consisting of krypton and aluminum. The investigations are based on molecular dynamics calculations. In this way anharmonic effects could be full considered. The dynamics has been studie
Publikováno v:
Surface Review and Letters. :1095-1101
By temperature-dependent low energy electron diffraction experiments at the Al(110) and the Au(110) surface the roughening transition temperature and the characteristic temperature for the onset of surface melting were determined.
Autor:
W. Schommers
Publikováno v:
Nanostructured Materials. 9:693-696
The generalized phonon density of states for Al nano-clusters has been studied theoretically using molecular dynamics. In this way anharmonic effects could be fully considered. In order to investigate the structure of the clusters, we have also calcu
Autor:
W. Schommers
Publikováno v:
Modern Physics Letters B. 10:963-972
In this article we report on molecular dynamics calculations of Al (110) surfaces using a temperature-dependent pair potential. The pair correlation function as well as the mean-square displacements as a function of time have been investigated within
Autor:
W. Schommers
Publikováno v:
International Journal of Modern Physics B. :3411-3422
The effect of premelting is of particular interest in connection with the theory of melting. In this paper, we discuss the structural and dynamical properties of the surfaces of semi-infinite crystals as well as of nano-clusters, which show the effec
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 98:326-330
The Si(111) surface shows spontaneous (7×7) reconstruction at low temperatures. At about 1130 K deconstruction to a (1×1) structure takes place. We have studied the reconstructed surface and the quenched, unreconstructed surface by low energy elect
Autor:
W. Schommers
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 98:322-326
The effect of premelting is of particular interest in connection with the theory of melting. In this paper, we discuss structural and dynamical properties of surfaces of semi-infinite crystals as well as of nano-clusters, which show the effect of pre
Publikováno v:
Modern Physics Letters B. :103-111
The phonon density of states for nanoclusters has been studied theoretically using molecular dynamics; in this way, anharmonic effects could be fully considered. Comparisons are made with results obtained from bulk calculations. The cluster propertie