Cooperative structural and Peierls transition of indium chains on Si(111)

Y. J. Sun, S. Agario, S. Souma, K. Sugawara, Y. Tago, T. Sato, T. Takahashi

研究成果: Article査読

36 被引用数 (Scopus)


We have performed high-resolution angle-resolved photoemission spectroscopy on quasi-one-dimensional indium chains on the Si(111) surface to study the temperature-induced metal-insulator (MI) transition accompanied by the 4×1 to 8×2 structural change. The band dispersion near EF shows an abrupt change at 120 K, giving a relatively large energy gap compared to the energy scale of the transition temperature. The band dispersion of the 8×2 phase shows no discernible temperature evolution, in sharp contrast to the conventional simple Peierls or structural transition. The experimental results suggest that the Peierls instability is important in the MI transition, while other structural effects are cooperatively involved.

ジャーナルPhysical Review B - Condensed Matter and Materials Physics
出版ステータスPublished - 2008 3月 12

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学


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