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Phys Rev Lett. 2001 Oct 22;87(17):177602. Epub 2001 Oct 9.

Fermi surface of Bi(111) measured by photoemission spectroscopy.

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1
Synchrotron Radiation Center, University of Wisconsin-Madison, Stoughton, Wisconsin 53589, USA.

Abstract

Synchrotron radiation angle-resolved photoemission spectroscopy of Bi(111) shows that the Fermi surface consists of six elongated hole pockets along the gamma M right macro directions surrounding a ring-shaped electron pocket centered at gamma, all of which have two-dimensional character. The associated hole and electron sheet densities are p(s) = 1.1 x 10(13) cm(-2) and n(s) = 5.5 x 10(12) cm(-2), respectively. A weak emission feature associated with the bulk hole pocket in the Fermi surface was identified. The Fermi momentum of the bulk hole band near the T point is k(F) = 0.013+/-0.003 A(-1).

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