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Title: Evidence against a charge density wave on Bi(111)

Abstract

The Bi(111) surface was studied by scanning tunneling microscopy (STM), transmission electron microscopy (TEM) and angle-resolved photoemission (ARPES) in order to verify the existence of a recently proposed surface charge density wave (CDW). The STM and TEM results to not support a CDW scenario at low temperatures. Thus the quasiparticle interference pattern observed in STM confirms the spin-orbit split character of the surface states which prevents the formation of a CDW, even in the case of good nesting. The dispersion of the electronic states observed with ARPES agrees well with earlier findings. In particular, the Fermi contour of the electron pocket at the centre of the surface Brillouin zone is found to have a hexagonal shape. However, no gap opening or other signatures of a CDW phase transition can be found in the temperature-dependent data.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [2];  [2];  [2];  [3];  [3];  [4];  [4];  [5];  [6];  [6];  [7];  [7];  [1]
+ Show Author Affiliations
  1. Univ. of Aarhus, Aarhus (Denmark)
  2. Freie Univ., Berlin (Germany)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Arizona State Univ., Tempe, AZ (United States)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  6. Delft Univ. of Technology, Delft (The Netherlands)
  7. Institute for Solid State Research, Dresden (Germany)
Publication Date:
Research Org.:
Arizona State Univ., Tempe, AZ (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1164076
Grant/Contract Number:  
FG03-02ER45996
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 72; Journal Issue: 8; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Kim, T. K., Wells, J., Kirkegaard, C., Li, Z., Hoffmann, S. V., Gayone, J. E., Fernandez-Torrente, I., Häberle, P., Pascual, J. I., Moore, K. T., Schwartz, A. J., He, H., Spence, J. C. H., Downing, K. H., Lazar, S., Tichelaar, F. D., Borisenko, S. V., Knupfer, M., and Hofmann, Ph. Evidence against a charge density wave on Bi(111). United States: N. p., 2005. Web. doi:10.1103/PhysRevB.72.085440.
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Kim, T. K., Wells, J., Kirkegaard, C., Li, Z., Hoffmann, S. V., Gayone, J. E., Fernandez-Torrente, I., Häberle, P., Pascual, J. I., Moore, K. T., Schwartz, A. J., He, H., Spence, J. C. H., Downing, K. H., Lazar, S., Tichelaar, F. D., Borisenko, S. V., Knupfer, M., & Hofmann, Ph. Evidence against a charge density wave on Bi(111). United States. doi:10.1103/PhysRevB.72.085440.
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Kim, T. K., Wells, J., Kirkegaard, C., Li, Z., Hoffmann, S. V., Gayone, J. E., Fernandez-Torrente, I., Häberle, P., Pascual, J. I., Moore, K. T., Schwartz, A. J., He, H., Spence, J. C. H., Downing, K. H., Lazar, S., Tichelaar, F. D., Borisenko, S. V., Knupfer, M., and Hofmann, Ph. Thu . "Evidence against a charge density wave on Bi(111)". United States. doi:10.1103/PhysRevB.72.085440. https://www.osti.gov/servlets/purl/1164076.
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@article{osti_1164076,
title = {Evidence against a charge density wave on Bi(111)},
author = {Kim, T. K. and Wells, J. and Kirkegaard, C. and Li, Z. and Hoffmann, S. V. and Gayone, J. E. and Fernandez-Torrente, I. and Häberle, P. and Pascual, J. I. and Moore, K. T. and Schwartz, A. J. and He, H. and Spence, J. C. H. and Downing, K. H. and Lazar, S. and Tichelaar, F. D. and Borisenko, S. V. and Knupfer, M. and Hofmann, Ph.},
abstractNote = {The Bi(111) surface was studied by scanning tunneling microscopy (STM), transmission electron microscopy (TEM) and angle-resolved photoemission (ARPES) in order to verify the existence of a recently proposed surface charge density wave (CDW). The STM and TEM results to not support a CDW scenario at low temperatures. Thus the quasiparticle interference pattern observed in STM confirms the spin-orbit split character of the surface states which prevents the formation of a CDW, even in the case of good nesting. The dispersion of the electronic states observed with ARPES agrees well with earlier findings. In particular, the Fermi contour of the electron pocket at the centre of the surface Brillouin zone is found to have a hexagonal shape. However, no gap opening or other signatures of a CDW phase transition can be found in the temperature-dependent data.},
doi = {10.1103/PhysRevB.72.085440},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 8,
volume = 72,
place = {United States},
year = {2005},
month = {8}
}
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Journal Article:
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DOI:  10.1103/PhysRevB.72.085440
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