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Phys. Rev. B 75, 140506(R) (2007) [4 pages]

Infrared Hall conductivity in optimally doped Bi2Sr2CaCu2O8+δ: Drude behavior examined by experiment and fluctuation-exchange-model calculations

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D. C. Schmadel1,*, G. S. Jenkins1,*, J. J. Tu2,3, G. D. Gu3, Hiroshi Kontani4, and H. D. Drew1,5
1Department of Physics, University of Maryland, College Park, Maryland 20742, USA
2Department of Physics, City University of New York, New York, New York 11973, USA
3Department of Physics, Brookhaven National Laboratory, Upton, New York 11973, USA
4Department of Physics, Nagoya University, Furo-cho, Nagoya 464-8602, Japan
5Center of Superconductivity Research, University of Maryland, College Park, Maryland 20742, USA

Received 6 December 2006; published 16 April 2007

The temperature dependence of the Hall conductivity is reported at mid- and far-IR frequencies for cleaved single crystals. A nearly simple Drude behavior is observed with a scattering rate that is linear in temperature and nearly frequency independent. The Hall data are in good agreement with calculations based on the fluctuation-exchange interaction when current vertex corrections are included. The σxy quasiparticle spectral weight is suppressed to 0.09 times the band value, compared with 0.33 times the band value for σxx.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.75.140506
DOI:
10.1103/PhysRevB.75.140506
PACS:
74.72.Hs, 71.18.+y, 74.20.Mn, 74.25.Nf

*Electronic address: schmadel@physics.umd.edu

 
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