한국진공학회:학술대회논문집 (Proceedings of the Korean Vacuum Society Conference)
- 한국진공학회 2009년도 제38회 동계학술대회 초록집
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- Pages.4-5
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- 2010
Preparation of ultra-clean hydrogen and deuterium terminated Si(111)-($1{\times}1$ ) surfaces and re-observation of the surface phonon dispersion curves
- Kato, H. (Department of Physics, Tohoku University) ;
- Taoka, T. (Department of Physics, Tohoku University) ;
- Murugan, P. (Institute of Materials Research, Tohoku University) ;
- Kawazoe, Y. (Institute of Materials Research, Tohoku University) ;
- Yamada, T. (RIKEN) ;
- Kasuya, A. (Int. Advanced Research and Education Org., Tohoku University) ;
- Suto, S. (Department of Physics, Tohoku University)
- 발행 : 2010.02.17
초록
The surface phonon is defined as a coherent vibrational excitation of surface atoms propagating along the surface. It is characterized by a phonon dispersion curves, which were extensively studied in 1990's using helium atom scattering and high-resolution electron-energy-loss spectroscopy (HREELS)[1].The understanding is mainly based on the theoretical framework of a classical bond model or cluster calculations. The recent sample preparation and first principles calculations open the naval way to deep insight for surface phonon problems. The surface phonon dispersion on the hydrogen-terminated Si(111)-(
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