Doubling of the bands in overdoped Bi2Sr2CaCu2O8-probable evidence for c-axis bilayer coupling

Preprint

21 February 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0102386

Abstract

We present high resolution ARPES data of the bilayer superconductor Bi2Sr2CaCu2O8 (Bi2212) showing a clear doubling of the near EF bands. This splitting approaches zero along the (0,0)-(pi,pi) nodal line and is not observed in single layer Bi2Sr2CuO6 (Bi2201), suggesting that the splitting is due to the long sought after bilayer splitting effect. The splitting has a magnitude of approximately 75 meV near the middle of the zone, extrapolating to about 100 meV near the (pi,0) point

Keywords

OVERDOPED BI2SR2CACU2O8
BI2SR2CACU2O8 PROBABLE
PROBABLE EVIDENCE
BILAYER COUPLING
SPLITTING EFFECT
SUPERCONDUCTOR
AXIS BILAYER

All Related Versions

Version 1, 2001-02-21, ArXiv
Published version: Physical Review Letters, 87 (11), 117002.

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