Hydrogen Coverage on W(001) Surface as a Dynamical System

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  • Iizuka Takeshi
    Institute of Physics, College of Arts and Sciences, University of Tokyo
  • Iwata Yasushi
    Institute of Physics, College of Arts and Sciences, University of Tokyo
  • Wadati Miki
    Institute of Physics, College of Arts and Sciences, University of Tokyo
  • Komaki Ken-ichiro
    Institute of Physics, College of Arts and Sciences, University of Tokyo

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  • Hydrogen Coverage on W 001 Surface as a

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Abstract

Time evolution of hydrogen coverage on a well defined tungsten surface detected by the nuclear reaction is discussed. A difference equation is proposed to describe a competition between the adsorption and desorption processes. Overshoot and oscillalion behaviors in the time variation of the hydrogen coverage are explained. A quantitative agreement between the experimental and theoretical results is observed.

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