Brief Communications Arising

Nature 432, (18 November 2004) | doi:10.1038/nature03164; Published online 17 November 2004

Copper oxide superconductors:  Sharp-mode coupling in high-Tc superconductors (reply)

Jungseek Hwang1, Thomas Timusk2 & Genda D. Gu2

Hwang et al. reply - Our optical technique has the advantage of being a bulk probe, which is less subject to uncertainties in the doping level and in the quality of the surface than ARPES. It is also capable of higher energy resolution and the overall noise level is lower. The disadvantage is that it gives momentum-averaged properties.

  1. Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L9H 5M3, Canada
  2. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000, USA

Correspondence to: Thomas Timusk2 Email: timusk@mcmaster.ca

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