Evidence for an energy scale for quasiparticle dispersion in Bi2Sr2CaCu2O8

P. V. Bogdanov; A. Lanzara; S. A. Kellar; X. J. Zhou; E. D. Lu; W. J. Zheng; G. Gu; J. I. Shimoyama; K. Kishio; H. Ikeda; R. Yoshizaki; Z. Hussain; Z. X. Shen

doi:10.1103/PhysRevLett.85.2581

Evidence for an energy scale for quasiparticle dispersion in Bi₂Sr₂CaCu₂O₈

P. V. Bogdanov
, A. Lanzara
, S. A. Kellar
, X. J. Zhou
, E. D. Lu
, W. J. Zheng
, G. Gu
, J. I. Shimoyama
, K. Kishio
, H. Ikeda
, R. Yoshizaki
, Z. Hussain
, Z. X. Shen

Physics

MS 69
Lawrence Berkeley National Laboratory
University of New South Wales
The University of Tokyo
University of Tsukuba

Research output: Contribution to journal › Article › peer-review

289 Scopus citations

Abstract

Quasiparticle dispersion in Bi₂Sr₂CaCu₂O₈ is investigated with improved angular resolution as a function of temperature and doping. Unlike the linear dispersion predicted by the band calculation, the data show a sharp break in dispersion at 50±15 meV binding energy where the velocity changes by a factor of 2 or more. This change provides an energy scale in the quasiparticle self-energy. This break in dispersion is evident at and away from the d-wave node line, but the magnitude of the dispersion change decreases with temperature and with increasing doping.

Original language	English
Pages (from-to)	2581-2584
Number of pages	4
Journal	Physical Review Letters
Volume	85
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.85.2581
State	Published - Sep 18 2000

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10.1103/PhysRevLett.85.2581

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title = "Evidence for an energy scale for quasiparticle dispersion in Bi2Sr2CaCu2O8",

abstract = "Quasiparticle dispersion in Bi2Sr2CaCu2O8 is investigated with improved angular resolution as a function of temperature and doping. Unlike the linear dispersion predicted by the band calculation, the data show a sharp break in dispersion at 50±15 meV binding energy where the velocity changes by a factor of 2 or more. This change provides an energy scale in the quasiparticle self-energy. This break in dispersion is evident at and away from the d-wave node line, but the magnitude of the dispersion change decreases with temperature and with increasing doping.",

author = "Bogdanov, \{P. V.\} and A. Lanzara and Kellar, \{S. A.\} and Zhou, \{X. J.\} and Lu, \{E. D.\} and Zheng, \{W. J.\} and G. Gu and Shimoyama, \{J. I.\} and K. Kishio and H. Ikeda and R. Yoshizaki and Z. Hussain and Shen, \{Z. X.\}",

year = "2000",

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doi = "10.1103/PhysRevLett.85.2581",

language = "English",

volume = "85",

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TY - JOUR

T1 - Evidence for an energy scale for quasiparticle dispersion in Bi2Sr2CaCu2O8

AU - Bogdanov, P. V.

AU - Lanzara, A.

AU - Kellar, S. A.

AU - Zhou, X. J.

AU - Lu, E. D.

AU - Zheng, W. J.

AU - Gu, G.

AU - Shimoyama, J. I.

AU - Kishio, K.

AU - Ikeda, H.

AU - Yoshizaki, R.

AU - Hussain, Z.

AU - Shen, Z. X.

PY - 2000/9/18

Y1 - 2000/9/18

N2 - Quasiparticle dispersion in Bi2Sr2CaCu2O8 is investigated with improved angular resolution as a function of temperature and doping. Unlike the linear dispersion predicted by the band calculation, the data show a sharp break in dispersion at 50±15 meV binding energy where the velocity changes by a factor of 2 or more. This change provides an energy scale in the quasiparticle self-energy. This break in dispersion is evident at and away from the d-wave node line, but the magnitude of the dispersion change decreases with temperature and with increasing doping.

AB - Quasiparticle dispersion in Bi2Sr2CaCu2O8 is investigated with improved angular resolution as a function of temperature and doping. Unlike the linear dispersion predicted by the band calculation, the data show a sharp break in dispersion at 50±15 meV binding energy where the velocity changes by a factor of 2 or more. This change provides an energy scale in the quasiparticle self-energy. This break in dispersion is evident at and away from the d-wave node line, but the magnitude of the dispersion change decreases with temperature and with increasing doping.

UR - https://www.scopus.com/pages/publications/4644332272

U2 - 10.1103/PhysRevLett.85.2581

DO - 10.1103/PhysRevLett.85.2581

M3 - Article

AN - SCOPUS:4644332272

SN - 0031-9007

VL - 85

SP - 2581

EP - 2584

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

ER -

Evidence for an energy scale for quasiparticle dispersion in Bi₂Sr₂CaCu₂O₈

Abstract

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