Open AccessStructure and ad-atom thermal vibrational amplitude for the Ga/Si(001) 2x1 surface
Author(s) -
Yuping Qian,
Michael J. Bedzyk
Publication year - 1994
Language(s) - English
Resource type - Reports
DOI - 10.2172/459394
Subject(s) - amplitude , atom (system on chip) , thermal , dimer , bond length , surface (topology) , lattice (music) , materials science , atomic physics , molecular vibration , molecular physics , chemistry , crystallography , optics , physics , molecule , crystal structure , thermodynamics , geometry , organic chemistry , mathematics , computer science , acoustics , embedded system
Fundamental and higher-order harmonic x-ray standing wave measurements were combined to directly measure the lattice positions and thermal vibrational amplitudes of Ga adatoms on the Si(001) surface. In this room temperature study, surface structural parameters such as ad-dimer bond lengths were also determined with much higher accuracy than previous studies