title: Development of an in situ polarization-dependent total-reflection fluorescence XAFS measurement system.
abstract: An in situ polarization-dependent total-reflection fluorescence X-ray absorption fine structure (PTRF-XAFS) spectroscopy system has been developed, which enables PTRF-XAFS experiments to be performed in three different orientations at various temperatures (273-600 K) and pressures (10(-10) approximately 760 torr). The system consists of a measurement chamber and a preparation chamber. The measurement chamber has a high-precision six-axis goniometer and a multielement solid-state detector. Using a transfer chamber, also operated under ultra-high-vacuum conditions, the sample can be transferred to the measurement chamber from the preparation chamber, which possesses low-energy electron diffraction, Auger electron spectroscopy and X-ray photoelectron spectroscopy facilities, as well as a sputtering gun and an annealing system. The in situ PTRF-EXAFS for Cu species on TiO2 (110) has been measured in three different orientations, revealing anisotropic growth of Cu under the influence of the TiO2 (110) surface.
authors.affiliation: Department of Chemistry, Graduate School of Science, The University of Tokyo, Japan.
authors.forename: W J
authors.initials: WJ
authors.lastname: Chun
authors.forename: Y
authors.initials: Y
authors.lastname: Tanizawa
authors.forename: T
authors.initials: T
authors.lastname: Shido
authors.forename: Y
authors.initials: Y
authors.lastname: Iwasawa
authors.forename: M
authors.initials: M
authors.lastname: Nomura
authors.forename: K
authors.initials: K
authors.lastname: Asakura