PEIERLS FLUCTUATIONS IN THE ELECTRON SYSTEM OF A QUASI-ONE-DIMENSIONAL SOLID

J. Schäfer, R. Claessen, Eli Rotenberg, S. D. Kevan, P. Blaha and R. E. Thorne
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J. Schäfer: Institut für Experimentalphysik, Universität Augsburg, 86135 Augsburg, Germany
R. Claessen: Institut für Experimentalphysik, Universität Augsburg, 86135 Augsburg, Germany
Eli Rotenberg: Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
S. D. Kevan: Department of Physics, University of Oregon, Eugene, OR 97403, USA
P. Blaha: Institut für Physikalische und Theoretische Chemie, Technische Universität Wien, 1060 Wien, Austria
R. E. Thorne: Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA

Surface Review and Letters (SRL), 2002, vol. 09, issue 02, 1029-1033

Abstract: The physics of the Peierls compound NbSe3 is elucidated by mapping of the electron bands obtained from angle-resolved photoemission. We present experimental data on the Fermi level crossing responsible for the charge density wave along the one-dimensional axis. The data are consistent with a density functional calculation of the Fermi surfaces. The instability with periodicityq = 0.44 Å-1induces a backfolding of the electron bands in the nominally metallic state high above the critical temperature of 145 K.

Date: 2002
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DOI: 10.1142/S0218625X02003299

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