Direct evidence for asymmetric dimer on Si(100) at low temperature by means of high-resolution Si 2p photoelectron spectroscopy

Yoshiyuki Yamashita, Shin Ichi Machida, Masashi Nagao, Susumu Yamamoto, Youhei Kakefuda, Kozo Mukai, Jun Yoshinobu

研究成果: Article査読

21 被引用数 (Scopus)

抄録

We have investigated the electronic states of the Si(100) surface at low temperature by means of high-resolution Si 2p photoelectron spectroscopy. The peak intensities of up and down atoms of the asymmetric dimer in Si 2p spectra do not change from 140 K to 55 K, showing that the number of asymmetric dimers is preserved. Therefore, we can conclude that the ground state of the dimer is asymmetric and the symmetric dimer images observed by scanning tunneling microscopy at this temperature range are due to extrinsic or dynamical intrinsic effects on the buckled dimer.

本文言語English
ページ(範囲)L272-L274
ジャーナルJapanese Journal of Applied Physics, Part 2: Letters
41
3 A
DOI
出版ステータスPublished - 2002 3月 1
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(その他)
  • 物理学および天文学(全般)

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