Competition between Antiferromagnetism and Superconductivity in High $T_c$ Cuprates

Details Competition between Antiferromagnetism and Superconductivity in High $T_c$ Cuprates Competition between Antiferromagnetism and Superconductivity in High $T_c$ Cuprates

2004-10-06

arxiv.org/abs/cond-mat/0410162v1

Phys. Rev. Lett. 94, 156404 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.94.156404

Using variational cluster perturbation theory we study the competition between d-wave superconductivity (dSC) and antiferromagnetism (AF) in the the t-t'-t''-U Hubbard model. Large scale computer calculations reproduce the overall ground state phase diagram of the high-temperature superconductors as well as the one-particle excitation spectra for both hole- and electron-doping. We identify clear signatures of the Mott gap as well as of AF and of dSC that should be observable in photoemission experiments.

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