Charge-density-wave and superconductivity d-wave gaps in the Hubbard model for underdoped high-Tc cuprates

T. Dahm; D. Manske; L. Tewordt

doi:10.1103/PhysRevB.56.R11419

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Charge-density-wave and superconductivity d-wave gaps in the Hubbard model for underdoped high-Tc cuprates

T. Dahm, D. Manske, L. Tewordt

DOI 10.1103/PhysRevB.56.R11419 · Physical Review B

T1

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Abstract

We present a general theory of coexisting charge-density-wave (CDW) and superconductivity d-wave gaps for the two-dimensional (2D) Hubbard model. This motivates the description of the normal state of the underdoped cuprates by the previous fluctuation-exchange equations with a phenomenological CDW d-wave gap. The resulting neutron-scattering intensity, spin-lattice relaxation rate 1/T1, magnetic susceptibility, resistivity, and photoemission intensity are in qualitative agreement with the data on underdoped high-Tc cuprates. The Tc decreases and the crossover temperature T* for 1/T1T increases with increasing amplitude of the CDW gap.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu4O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown