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Phys. Rev. B 66, 020511(R) (2002) [4 pages]

Thermodynamic properties of the d-density-wave order in cuprates

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Congjun Wu1,2 and W. Vincent Liu1,3
1Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801
2Department of Physics, McCullough Building, Stanford University, Stanford, California 94305-4045
3Center for Theoretical Physics, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Received 11 January 2002; published 24 July 2002

We solve a popular effective Hamiltonian of competing d-density-wave and d-wave superconductivity orders, self-consistently at the mean-field level for a wide range of doping and temperatures. The theory predicts a temperature dependence of the d-density wave order parameter seemingly inconsistent with the neutron-scattering and muon scattering resonance experiments of the cuprates. We further calculate thermodynamic quantities, such as chemical potential, entropy, and specific heat. Their distinct features can be used to test the existence of the d-density-wave order in cuprates.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.66.020511
DOI:
10.1103/PhysRevB.66.020511
PACS:
74.25.Bt, 74.20.Mn