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Platé M, Mottershead JD, Elfimov IS, et al. Fermi surface and quasiparticle excitations of overdoped Tl2Ba2CuO6 + delta. Phys Rev Lett. 2005;95(7):077001doi: 10.1103/PhysRevLett.95.077001.
Platé, M., Mottershead, J. D., Elfimov, I. S., Peets, D. C., Liang, R., Bonn, D. A., Hardy, W. N., Chiuzbaian, S., Falub, M., Shi, M., Patthey, L., & Damascelli, A. (2005). Fermi surface and quasiparticle excitations of overdoped Tl2Ba2CuO6 + delta. Physical review letters, 95(7), 077001. https://doi.org/10.1103/PhysRevLett.95.077001
Platé, M, et al. "Fermi surface and quasiparticle excitations of overdoped Tl2Ba2CuO6 + delta." Physical review letters vol. 95,7 (2005): 077001. doi: https://doi.org/10.1103/PhysRevLett.95.077001
Platé M, Mottershead JD, Elfimov IS, Peets DC, Liang R, Bonn DA, Hardy WN, Chiuzbaian S, Falub M, Shi M, Patthey L, Damascelli A. Fermi surface and quasiparticle excitations of overdoped Tl2Ba2CuO6 + delta. Phys Rev Lett. 2005 Aug 12;95(7):077001. doi: 10.1103/PhysRevLett.95.077001. Epub 2005 Aug 08. PMID: 16196815.
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Phys Rev Lett. 2005 Aug 12;95(7):077001. doi: 10.1103/PhysRevLett.95.077001. Epub 2005 Aug 08.

Fermi surface and quasiparticle excitations of overdoped Tl2Ba2CuO6 + delta.

Physical review letters

M Platé, J D F Mottershead, I S Elfimov, D C Peets, Ruixing Liang, D A Bonn, W N Hardy, S Chiuzbaian, M Falub, M Shi, L Patthey, A Damascelli

Affiliations

  1. Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada.

PMID: 16196815 DOI: 10.1103/PhysRevLett.95.077001

Abstract

The high-T(c) superconductor Tl(2)Ba(2)CuO(6 + delta) is studied by angle-resolved photoemission spectroscopy. For a very overdoped T(c) = 30 K sample, the Fermi surface consists of a single large hole pocket centered at (pi, pi) and is approaching a topological transition. Although a superconducting gap with d(x(2)-y(2)) symmetry is tentatively identified, the quasiparticle evolution with momentum and binding energy exhibits a marked departure from the behavior observed in under and optimally doped cuprates. The relevance of these findings to scattering, many-body, and quantum-critical phenomena is discussed.

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