Long-period surface structure stabilized by Fermi surface nesting: Cu (001) - (20x20) R26.6°-In

T. Nakagawa, H. W. Yeom, E. Rotenberg, B. Krenzer, S. D. Kevan, H. Okuyama, M. Nishijima, T. Aruga

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5 Citations (Scopus)


We have studied the atomic and electronic structure of the Cu (001) - (20x20) R26.6°-In surface, which undergoes a reversible transition to a p (2x2) phase at high temperature. Low temperature scanning-tunneling microscopy indicates a p (2x2) structure modulated at the (20x20) periodicity. Angle-resolved photoelectron spectroscopy shows a surface resonance exhibiting gap opening and backfolding along a (20x20) zone boundary. We suggest that the (20x20) structure is stabilized due to the Fermi surface nesting accompanying a surface charge density wave.

Original languageEnglish
Article number075407
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number7
Publication statusPublished - 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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