Coupling of the B1g Phonon to the Antinodal Electronic States of Bi2Sr2Ca0.92Y0.08Cu2O8+δ

T. Cuk, F. Baumberger, D. H. Lu, N. Ingle, X. J. Zhou, H. Eisaki, N. Kaneko, Z. Hussain, T. P. Devereaux, N. Nagaosa, and Z.-X. Shen
Phys. Rev. Lett. 93, 117003 – Published 10 September 2004

Abstract

Angle-resolved photoemission spectroscopy on optimally doped Bi2Sr2Ca0.92Y0.08Cu2O8+δ uncovers a coupling of the electronic bands to a 40 meV mode in an extended k-space region away from the nodal direction, leading to a new interpretation of the strong renormalization of the electronic structure seen in Bi2212. Phenomenological agreements with neutron and Raman experiments suggest that this mode is the B1g oxygen bond-buckling phonon. A theoretical calculation based on this assignment reproduces the electronic renormalization seen in the data.

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  • Received 25 February 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.117003

©2004 American Physical Society

Authors & Affiliations

T. Cuk1, F. Baumberger1, D. H. Lu1, N. Ingle1, X. J. Zhou1, H. Eisaki2,1, N. Kaneko1, Z. Hussain3, T. P. Devereaux4, N. Nagaosa5, and Z.-X. Shen1,6

  • 1Departments of Physics, Applied Physics, and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305, USA
  • 2Nanoelectronics Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Central 2, Umezono, Tsukuba, Ibaraki, 305-8568, Japan
  • 3Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 4Department of Physics, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
  • 5CREST, Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan
  • 6Physics Institute, University of Zurich, Zurich, CH-8057, Switerland

See Also

Anisotropic Electron-Phonon Interaction in the Cuprates

T. P. Devereaux, T. Cuk, Z.-X. Shen, and N. Nagaosa
Phys. Rev. Lett. 93, 117004 (2004)

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Vol. 93, Iss. 11 — 10 September 2004

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