Kinetics of Excess Ag Atoms on Si(111)-√<3>×√<3>-Ag Studied by Second-Harmonic Generation(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• Second-harmonic generation (SHG) has been demonstrated to facilitate studies of the kinetics of two-dimensional Ag adatom gas on Si (111)-√<3> × √<3>-Ag surfaces At room temperature, the SH intensity at the excitation photon energy of 1.17 eV decreased for Ag deposition of small coverages up to 0.02 ML, and did not recover after ceasing the deposition ; while for thicker Ag coverages where the decrease was more than 50%, the SH intensity recovered monotonically after ceasing the deposition. The change of the SH intensity for a series of excitation photon energies were found to be consistent with the SH response reflecting the resonance enhancement due to the one-photon transition between the surface states S_2 (S_3) and S_1. At a sample temperature of 330℃, the SH intensity showed a "plateau" during recovery to the initial value after ceasing the deposition for thicker coverages

• 社団法人日本物理学会の論文
• 2004-12-15

著者

• Suzuki Takanori

  RIKEN

• Deng D

  Inst. Of Physical And Chemical Res. Saitama Jpn

• Deng Dongmei

  Riken:saitama University

• NUMATA Mitsunori

  Riken (The Institute of Physical and Chemical Research)

• Numata Mitsunori

  Riken:yokohama National University

• Deng Dongmei

  Riken (The Institute of Physical and Chemical Research)

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