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Title: Effects of laser irradiation on the morphology of Cu(110)

Abstract

The effects of pulsed laser irradiation on the morphology of the Cu(110) surface were investigated by means of reflectance difference spectroscopy (RDS) and spot profile analysis low-energy electron diffraction (SPA-LEED). The laser light induces surface defects (adatoms and islands) as well as subsurface dislocation lines. The high surface mobility leads to efficient annealing of the surface defects even at room temperature, whereas the subsurface dislocation lines persist up to temperatures T>800 K. SPA-LEED profiles of the (00) diffraction spot from the laser irradiated surface suggest an anisotropic distribution of the subsurface line defects related to the geometry of the fcc easy glide system, which is corroborated by STM measurements. Comparative experiments using conventional Ar ion bombardment point out the distinctiveness of the morphological changes induced by laser irradiation.

Authors:
; ; ; ; ; ; ; ;  [1]
  1. Institut fuer Experimentalphysik, Johannes Kepler Universitaet Linz, A-4040 Linz (Austria)
Publication Date:
OSTI Identifier:
21143601
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 78; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevB.78.035433; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; ANNEALING; ARGON IONS; COPPER; CRYSTAL DEFECTS; DISLOCATIONS; DISTRIBUTION; ELECTRON DIFFRACTION; FCC LATTICES; LASER RADIATION; MOBILITY; MORPHOLOGICAL CHANGES; PHOTON BEAMS; SCANNING TUNNELING MICROSCOPY; SPECTROSCOPY; SURFACES; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K

Citation Formats

Brandstetter, T, Draxler, M, Hohage, M, Zeppenfeld, P, Stehrer, T, Heitz, J, Georgiev, N, Martinotti, D, Ernst, H -J, Institut fuer Angewandte Physik, Johannes Kepler Universitaet Linz, A-4040 Linz, and CEA Saclay, DSM/Drecam/SPCSI, 91191 Gif sur Yvette. Effects of laser irradiation on the morphology of Cu(110). United States: N. p., 2008. Web. doi:10.1103/PHYSREVB.78.035433.
Brandstetter, T, Draxler, M, Hohage, M, Zeppenfeld, P, Stehrer, T, Heitz, J, Georgiev, N, Martinotti, D, Ernst, H -J, Institut fuer Angewandte Physik, Johannes Kepler Universitaet Linz, A-4040 Linz, & CEA Saclay, DSM/Drecam/SPCSI, 91191 Gif sur Yvette. Effects of laser irradiation on the morphology of Cu(110). United States. https://doi.org/10.1103/PHYSREVB.78.035433
Brandstetter, T, Draxler, M, Hohage, M, Zeppenfeld, P, Stehrer, T, Heitz, J, Georgiev, N, Martinotti, D, Ernst, H -J, Institut fuer Angewandte Physik, Johannes Kepler Universitaet Linz, A-4040 Linz, and CEA Saclay, DSM/Drecam/SPCSI, 91191 Gif sur Yvette. 2008. "Effects of laser irradiation on the morphology of Cu(110)". United States. https://doi.org/10.1103/PHYSREVB.78.035433.
@article{osti_21143601,
title = {Effects of laser irradiation on the morphology of Cu(110)},
author = {Brandstetter, T and Draxler, M and Hohage, M and Zeppenfeld, P and Stehrer, T and Heitz, J and Georgiev, N and Martinotti, D and Ernst, H -J and Institut fuer Angewandte Physik, Johannes Kepler Universitaet Linz, A-4040 Linz and CEA Saclay, DSM/Drecam/SPCSI, 91191 Gif sur Yvette},
abstractNote = {The effects of pulsed laser irradiation on the morphology of the Cu(110) surface were investigated by means of reflectance difference spectroscopy (RDS) and spot profile analysis low-energy electron diffraction (SPA-LEED). The laser light induces surface defects (adatoms and islands) as well as subsurface dislocation lines. The high surface mobility leads to efficient annealing of the surface defects even at room temperature, whereas the subsurface dislocation lines persist up to temperatures T>800 K. SPA-LEED profiles of the (00) diffraction spot from the laser irradiated surface suggest an anisotropic distribution of the subsurface line defects related to the geometry of the fcc easy glide system, which is corroborated by STM measurements. Comparative experiments using conventional Ar ion bombardment point out the distinctiveness of the morphological changes induced by laser irradiation.},
doi = {10.1103/PHYSREVB.78.035433},
url = {https://www.osti.gov/biblio/21143601}, journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 3,
volume = 78,
place = {United States},
year = {Tue Jul 15 00:00:00 EDT 2008},
month = {Tue Jul 15 00:00:00 EDT 2008}
}