`ISRN Condensed Matter PhysicsVolume 2011 (2011), Article ID 961832, 5 pagesdoi:10.5402/2011/961832`
Research Article

## Theory of Isotope Effect in YBa 2 Cu 3 O 7 − 𝜹

Department of Physics, Beijing University, Beijing 100871, China

Received 31 July 2011; Accepted 24 August 2011

Academic Editor: H. Eisaki

Copyright © 2011 Fu-sui Liu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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