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Phys. Rev. B 65, 064502 (2002) [9 pages]

c-axis response of a high-Tc superconductor with d-density-wave order

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Wonkee Kim1, Jian-Xin Zhu2,3, J. P. Carbotte1, and C. S. Ting2
1Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1
2Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, Texas 77204
3Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Received 26 June 2001; published 4 January 2002

The microscopic origin of the pseudogap state that exists in the underdoped cuprates remains unknown. The c-axis properties in the pseudogap regime are particularly anomalous. We use a recently proposed model of a d density wave that leads to staggered currents and the doubling of the unit cell to investigate the c-axis kinetic energy and the optical sum rule. The density of states expected in the model is also considered.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.65.064502
DOI:
10.1103/PhysRevB.65.064502
PACS:
74.20.-z, 74.25.Gz
 
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