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Title: Low-energy electron diffraction study of the thermal expansion of Ag(111)

Abstract

The temperature dependence of the first three interlayer distances of the Ag(111) surface was studied by low-energy electron diffraction (LEED) over the temperature range 128K to 723 K. The first three interlayer spacings and the effective Debye temperatures were extracted from the LEED analysis. At the lowest temperature, the first two interlayer spacings are slightly (0.5 percent) contracted. All three interlayer spacings increase with temperature, finally reaching expansions relative to the bulk of about 0.8 percent at the highest temperature studied. The effective surface Debye temperature is lowest for the outermost layer, increasing toward the bulk value for successive layers.

Authors:
; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley National Lab., CA (US)
Sponsoring Org.:
USDOE Director, Office of Science. Office of Basic Energy Studies. Division of Materials Sciences (US)
OSTI Identifier:
793781
Report Number(s):
LBNL-49718
Journal ID: ISSN 0039-6028; SUSCAS; R&D Project: 505501; TRN: US200208%%65
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Journal Article
Journal Name:
Surface Science
Additional Journal Information:
Journal Volume: 468; Other Information: Journal Publication Date: 2000; PBD: 19 May 2000; Journal ID: ISSN 0039-6028
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SILVER; DEBYE TEMPERATURE; ELECTRON DIFFRACTION; TEMPERATURE DEPENDENCE; THERMAL EXPANSION; LOW-ENERGY ELECTRON DIFFRACTION THERMAL EXPANSION AG(111)

Citation Formats

Soares, E.A., Leatherman, G.S., Diehl, R.D., and Van Hove, M.A. Low-energy electron diffraction study of the thermal expansion of Ag(111). United States: N. p., 2000. Web. doi:10.1016/S0039-6028(00)00806-2.
Soares, E.A., Leatherman, G.S., Diehl, R.D., & Van Hove, M.A. Low-energy electron diffraction study of the thermal expansion of Ag(111). United States. doi:10.1016/S0039-6028(00)00806-2.
Soares, E.A., Leatherman, G.S., Diehl, R.D., and Van Hove, M.A. Fri . "Low-energy electron diffraction study of the thermal expansion of Ag(111)". United States. doi:10.1016/S0039-6028(00)00806-2. https://www.osti.gov/servlets/purl/793781.
@article{osti_793781,
title = {Low-energy electron diffraction study of the thermal expansion of Ag(111)},
author = {Soares, E.A. and Leatherman, G.S. and Diehl, R.D. and Van Hove, M.A.},
abstractNote = {The temperature dependence of the first three interlayer distances of the Ag(111) surface was studied by low-energy electron diffraction (LEED) over the temperature range 128K to 723 K. The first three interlayer spacings and the effective Debye temperatures were extracted from the LEED analysis. At the lowest temperature, the first two interlayer spacings are slightly (0.5 percent) contracted. All three interlayer spacings increase with temperature, finally reaching expansions relative to the bulk of about 0.8 percent at the highest temperature studied. The effective surface Debye temperature is lowest for the outermost layer, increasing toward the bulk value for successive layers.},
doi = {10.1016/S0039-6028(00)00806-2},
journal = {Surface Science},
issn = {0039-6028},
number = ,
volume = 468,
place = {United States},
year = {2000},
month = {5}
}