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

14 June 1999

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 82 (24) , 4898-4901
https://doi.org/10.1103/physrevlett.82.4898

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.

Keywords

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