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Nature of the broken-symmetry phase of the one-dimensional metallic In/Si(111) surface
Atomic-scale Surface Science Research Center and Institute of Physics and Applied Physics, Yonsei University, bKorea.
Department of Physics, The University of Tokyo, Japan.
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
Department of Applied Chemistry, The University of Tokyo, Japan .
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2002 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 65, no 24Article in journal (Refereed) Published
Abstract [en]

The phase transition of a metallic In chain structure on Si(111) was investigated by high-resolution photoemission. Core-level spectra clearly elucidate that the symmetry breaking at low temperature occurs only within the inner parts of the In chains. In the valence bands, the transition is accompanied by the formation of pseudogaps of 80–150 meV and the band backfolding with only marginal changes of the band dispersion. No sign of Luttinger liquid behavior is observed in the spectral function near the Fermi level. This result is generally consistent with the idea of a fluctuating one-dimensional charge-density wave state but conflicting with the present structure model for the low-temperature phase.

Place, publisher, year, edition, pages
2002. Vol. 65, no 24
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-47871DOI: 10.1103/PhysRevB.65.241307ISI: 000177043100011OAI: diva2:268767
Available from: 2013-03-27 Created: 2009-10-11 Last updated: 2013-03-27Bibliographically approved

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