Anomalous interplanar expansion at the (0001) surface of Be

Anomalous interplanar expansion at the (0001) surface of Be

Analysis of low-energy electron diffraction spectra for Be(0001) shows that the interplanar spacing between the first and second planes is expanded by 5.8% or 0.10 A. The size of this expansion is large compared to that of close-packed fcc (111) surfaces, which show little or no expansion. This larg...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical review letters 1992-04, Vol.68 (17), p.2632-2635
Hauptverfasser: DAVIS, H. L, HANNON, J. B, RAY, K. B, PLUMMER, E. W
Format: Artikel
Sprache:eng
Schlagworte:
360104 - Metals & Alloys- Physical Properties
665000 - Physics of Condensed Matter- (1992-)
ALKALINE EARTH METALS
Applied sciences
BERYLLIUM
COHERENT SCATTERING
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Condensed matter: structure, mechanical and thermal properties
CRYSTAL STRUCTURE
DIFFRACTION
ELECTRON DIFFRACTION
ELEMENTS
Exact sciences and technology
EXPANSION
MATERIALS SCIENCE
METALS
Metals. Metallurgy
MORPHOLOGY
Physics
RELAXATION
SCATTERING
Solid surfaces and solid-solid interfaces
SURFACE PROPERTIES
Surface structure and topography
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Analysis of low-energy electron diffraction spectra for Be(0001) shows that the interplanar spacing between the first and second planes is expanded by 5.8% or 0.10 A. The size of this expansion is large compared to that of close-packed fcc (111) surfaces, which show little or no expansion. This large expansion is discussed in terms of the unique bonding of Be. The second and third interplanar spacings show almost no relaxation.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.68.2632