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Author Botez, C. E. ♦ Elliott, W. C. ♦ Miceli, P. F. ♦ Stephens, P. W.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword PARTICLE ACCELERATORS ♦ MELTING ♦ SCATTERING ♦ SYNCHROTRONS ♦ THERMAL EXPANSION ♦ X-RAY DIFFRACTION
Abstract We have investigated the structure of the Ag(111) surface, for temperatures between 300 and 1100 K (90% of the bulk melting point), using synchrotron x-ray diffraction. Our data show no evidence of the anomalously large surface thermal expansion previously reported by medium-energy ion-scattering [Phys. Rev. Lett. 72, 3574 (1994)]. At all temperatures we find that the interlayer separations at the surface differ from their bulk counterparts by less than 1%, indicating that the surface expands similarly to the underlying bulk crystal. This behavior is in good agreement with results from molecular dynamics simulations.
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-03-15
Publisher Place United States
Journal Physical Review B
Volume Number 63
Issue Number 11


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