Surface and bulklike phonon modes of Si(1 0 0) nanometer thin film

Shigeki Saito, Talgat M. Inerbaev, Hiroshi Mizuseki, Nobuaki Igarashi, Ryunosuke Note, Yoshiyuki Kawazoe

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The surface and bulklike phonon modes of Si(1 0 0)c(4 × 2) nanometer-thin film were investigated using density functional calculations with a 4 × 4 supercell consisting of 10 layers. The surface phonon modes were dispersed over a wide range with two collective peaks around 120 and 190 cm-1, including interference from both surface phonons. The distribution of the bulklike phonon modes revealed similar peaks to the bulk phonons, and the two collective peaks were newly confirmed on the lower frequency side. These characteristic peaks provide large spectral variation in the phonons of nano-thin films.

Original languageEnglish
Pages (from-to)86-90
Number of pages5
JournalChemical Physics Letters
Issue number1-3
Publication statusPublished - 2006 Dec 29

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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