Instability and Charge Density Wave of Metallic Quantum Chains on a Silicon Surface

H. W. Yeom; S. Takeda; E. Rotenberg; I. Matsuda; K. Horikoshi; J. Schaefer; C. M. Lee; S. D. Kevan; T. Ohta; T. Nagao; S. Hasegawa

doi:10.1103/PhysRevLett.82.4898

Instability and Charge Density Wave of Metallic Quantum Chains on a Silicon Surface

H. W. Yeom, S. Takeda, E. Rotenberg, I. Matsuda, K. Horikoshi, J. Schaefer, C. M. Lee, S. D. Kevan, T. Ohta, T. Nagao, and S. Hasegawa

Phys. Rev. Lett. 82, 4898 – Published 14 June 1999

Abstract

Self-assembled indium linear chains on the Si(111) surface are found to exhibit instability of the metallic phase and 1D charge density wave (CDW). The room-temperature metallic phase of these chains undergoes a temperature-induced, reversible transition into a semiconducting phase. The 1D CDW along the chains is observed directly in real space by scanning tunneling microscopy at low temperature. The Fermi contours of the metallic phase measured by angle-resolved photoemission exhibit a perfect nesting predicting precisely the CDW periodicity.

Received 16 March 1999

DOI:https://doi.org/10.1103/PhysRevLett.82.4898

Authors & Affiliations

H. W. Yeom^1,*, S. Takeda², E. Rotenberg³, I. Matsuda⁴, K. Horikoshi², J. Schaefer⁵, C. M. Lee³, S. D. Kevan⁵, T. Ohta⁴, T. Nagao^2,6, and S. Hasegawa^2,6

¹Research Center for Spectrochemistry, the University of Tokyo, Tokyo 113-0033, Japan
²Department of Physics, the University of Tokyo, Tokyo 113-0033, Japan
³Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720
⁴Department of Chemistry, the University of Tokyo, Tokyo 113-0033, Japan
⁵Department of Physics, University of Oregon, Eugene, Oregon 97403
⁶CREST, the Japan Science and Technology Corporation, Saitama 332-0012, Japan

^*Corresponding author. Present address: Department of Applied Chemistry, the University of Tokyo, KEK-PF, 1-1 Oho, Tsukuba 305-0801, Japan. TEL/FAX: +81-298-64-5584. Electronic address: yeom@sr.t.u-tokyo.ac.jp