Phys. Rev. Lett. 79, 3467–3470 (1997)Topology of the Pseudogap and Shadow Bands in Bi2Sr2CaCu2O8+δ at Optimum DopingReceived 29 May 1997; published in the issue dated 3 November 1997 We report topology of the Fermi surface of Bi2Sr2CaCu2O8+δ superconducting system at the optimum doping determined by sequential angle-scanning photoemission combined with high intensity of synchrotron radiation. The Fermi surface at the optimum doping has a pseudogap around (π,0) as in underdoped samples, showing missing segments near the M points, and shadow bands around (0.5π,0.5π) and equivalent locations. The k dependence of the pseudogap shows a particular asymmetric topology that imposes a strong constraint on its theoretical explanation. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.79.3467
DOI:
10.1103/PhysRevLett.79.3467
PACS:
71.18.+y, 74.72.Hs, 79.60.-i
See AlsoComment: J. Mesot, M. R. Norman, H. Ding, and J. C. Campuzano, Hot Spots on the Fermi Surface of Bi2Sr2CaCu2O8+δ: Stripes versus Superstructure, Phys. Rev. Lett. 82, 2618 (1999). Reply: N. L. Saini, A. Bianconi, A. Lanzara, J. Avila, M. C. Asensio, S. Tajima, G. D. Gu, and N. Koshizuka, Saini et al. Reply:, Phys. Rev. Lett. 82, 2619 (1999). |
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.