Fermi Surface Nesting and Structural Transition on a Metal Surface: In <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>/</mi></math></span>Cu(001)

T. Nakagawa; G. I. Boishin; H. Fujioka; H. W. Yeom; I. Matsuda; N. Takagi; M. Nishijima; T. Aruga

doi:10.1103/PhysRevLett.86.854

Fermi Surface Nesting and Structural Transition on a Metal Surface: In $/$ Cu(001)

T. Nakagawa, G. I. Boishin, H. Fujioka, H. W. Yeom, I. Matsuda, N. Takagi, M. Nishijima, and T. Aruga

Phys. Rev. Lett. 86, 854 – Published 29 January 2001

Abstract

Peierls-type instability and structural phase transition are shown to occur on the surface of a normal metal. An In overlayer on Cu(001) undergoes a reversible transition at $\sim 350 K$ . Scanning tunneling microscopy of the low-temperature, reduced-symmetry phase indicates a strong periodic lattice distortion (PLD). Angle-resolved photoemission of the high-temperature phase reveals that the In-derived surface resonance constitutes a square-shaped, quasi-two-dimensional Fermi surface within the projected bulk Cu bands. The Fermi surface exhibits one-dimensional nesting upon the transition, which is in agreement with the PLD periodicity.

Received 15 February 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.854

Authors & Affiliations

T. Nakagawa¹, G. I. Boishin^1,*, H. Fujioka¹, H. W. Yeom², I. Matsuda³, N. Takagi^1,†, M. Nishijima¹, and T. Aruga^1,‡

¹Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
²Atomic-Scale Surface Science Research Center and Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Korea
³Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan

^*Present address: Institute of Experimental Physics, Johannes Kepler Universität, A-4040 Linz, Austria.
^†Present address: School of Advanced Sciences, The Graduate University for Advanced Studies, Kanagawa 240-0193, Japan.
^‡Electronic address: aruga@kuchem.kyoto-u.ac.jp