Roughening transition of a stepped Cu(113) surface: a synchrotron X-ray-scattering study

The study of the roughening transition of a stepped surface of Cu(113) has been performed with the use of synchrotron grazing-incidence X-ray scattering. Surface roughening was observed directly from X-ray scans of the step superlattice reflection between 300-750K. The results are interpreted with a...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1987-11, Vol.59 (21), p.2447-2450
Hauptverfasser:	LIANG, K. S, SIROTA, E. B, D'AMICO, K. L, HUGHES, G. J, SINHA, S. K
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences BREMSSTRAHLUNG COHERENT SCATTERING Condensed matter: electronic structure, electrical, magnetic, and optical properties COPPER CORRELATIONS CRITICAL TEMPERATURE Cross-disciplinary physics: materials science rheology DIFFRACTION ELECTROMAGNETIC RADIATION ELEMENTS Exact sciences and technology HIGH TEMPERATURE INCIDENCE ANGLE MATERIALS SCIENCE MEDIUM TEMPERATURE METALS Metals, semimetals and alloys Metals. Metallurgy Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Other interactions of matter with particles and radiation PHYSICAL PROPERTIES Physics RADIATIONS ROUGHNESS SCATTERING Specific materials SUPERLATTICES SURFACE PROPERTIES SYNCHROTRON RADIATION THERMODYNAMIC PROPERTIES TRANSITION ELEMENTS TRANSITION TEMPERATURE 360102 > Metals & Alloys-- Structure & Phase Studies X-RAY DIFFRACTION
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Zusammenfassung:	The study of the roughening transition of a stepped surface of Cu(113) has been performed with the use of synchrotron grazing-incidence X-ray scattering. Surface roughening was observed directly from X-ray scans of the step superlattice reflection between 300-750K. The results are interpreted with a theory of Villain, Grempel, and Lapujoulade, and the values of the transition temperature, the step--step repulsive energy, and the kink energy are determined to be 620 plus/minus 10K, 7.4 plus /minus 0.9 meV, and 181 plus/minus 6.5 meV, respectively. 9 ref.--AA
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.59.2447