Anisotropy of surface vibration measured by temperature dependence of the spot intensity in reflection high-energy electron diffraction

Journal Article · Tue Mar 15 04:00:00 EST 2005 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.71.113314· OSTI ID:20666249

Hashimoto, Mie; Takeda, Sakura Nishino; Daimon, Hiroshi ^[1]

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1. Graduate School of Materials Science, Nara Institute of Science and Technology, Takayama, Ikoma, Nara 630-0192 (Japan)

A handy method has recently been developed to investigate atomic vibration on a surface using reflection high-energy electron diffraction. We measured the temperature dependence of many spot intensities to obtain the angular dependence of Debye-Waller factors, from which the angular-dependence amplitudes of atomic vibration on surface can be deduced. We applied this method on a Si(111){radical}(3)x{radical}(3)-Ga surface. The obtained perpendicular vibrational amplitude of Ga was 0.11 A, which is in good agreement with those obtained by other works. The lateral vibrational amplitude is 0.07 A, which was observed directly for the first time.

• OSTI ID: 20666249
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 11 Vol. 71; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLITUDES
ANISOTROPY
DEBYE-WALLER FACTOR
ELECTRON DIFFRACTION
GALLIUM
REFLECTION
SEMICONDUCTOR MATERIALS
SILICON
SURFACES
TEMPERATURE DEPENDENCE