title: Phase transition from asymmetric to symmetric dimer structure on the Si(001) surface at high temperature.
abstract: The dimer configurations on the Si(001) surface at high temperatures have been investigated using the rocking curve of reflection high-energy electron diffraction. The Si(001) surface shows a displacive phase transition around 900 K, where a well-known asymmetric (tilted) dimer structure on the Si(001) at room temperature transforms to a symmetric dimer structure around 900 K. The metallic feature of the Si(001) surface above 900 K can be explained by the phase transition.
authors.affiliation: Graduate School of Integrated Science, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan. fukaya@yokohama-cu.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Fukaya
authors.forename: Y
authors.initials: Y
authors.lastname: Shigeta