Sharp-mode coupling in high-Tc superconductors

T. Cuk (), Z.-X. Shen, A. D. Gromko, Z. Sun and D. S. Dessau
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T. Cuk: Physics and Stanford Synchrotron Radiation Laboratory, Stanford University
Z.-X. Shen: Physics and Stanford Synchrotron Radiation Laboratory, Stanford University
A. D. Gromko: University of Colorado
Z. Sun: University of Colorado
D. S. Dessau: University of Colorado

Nature, 2004, vol. 432, issue 7015, 1-1

Abstract: Abstract Arising from: J. Hwang, T. Timusk & G. D. Gu Nature 427, 714–717 (2004); Hwang et al. reply In conventional superconductivity, sharp phonon modes (oscillations in the crystal lattice) are exchanged between electrons within a Cooper pair, enabling superconductivity. A critical question in the study of copper oxides with high critical transition temperature (Tc) is whether such sharp modes (which may be more general, including, for example, magnetic oscillations) also play a critical role in the pairing and hence the superconductivity. Hwang et al. report evidence that sharp modes (either phononic or magnetic in origin) are not important for superconductivity in these materials1, but we show here that their conclusions are undermined by the insensitivity of their experiment to a crucial physical effect2,3,4,5,6,7.

Date: 2004
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DOI: 10.1038/nature03163

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