SPIN MODE, ELECTRICAL-RESISTIVITY, AND THERMAL-CONDUCTIVITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL

Dahm T, TEWORDT L, WERMBTER S (1994)
PHYSICAL REVIEW B 49(1): 748-751.

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The spin and electronic spectra of the two-dimensional Hubbard model doped away from half-filling (n congruent-to 0.9) are calculated in a conserving fluctuation-exchange approximation for coupling U/t up to 7 and temperature down to 30 K. We find neither a spin-density wave nor a superconducting instability. The energy of the overdamped collective spin mode decreases as T decreases and U/t increases. The Wiedemann-Franz ratio of the thermal and electrical conductivities becomes smaller than the Sommerfeld value. We make comparison with experimental data on cuprates.
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Dahm T, TEWORDT L, WERMBTER S. SPIN MODE, ELECTRICAL-RESISTIVITY, AND THERMAL-CONDUCTIVITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL. PHYSICAL REVIEW B. 1994;49(1):748-751.
Dahm, T., TEWORDT, L., & WERMBTER, S. (1994). SPIN MODE, ELECTRICAL-RESISTIVITY, AND THERMAL-CONDUCTIVITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL. PHYSICAL REVIEW B, 49(1), 748-751.
Dahm, T., TEWORDT, L., and WERMBTER, S. (1994). SPIN MODE, ELECTRICAL-RESISTIVITY, AND THERMAL-CONDUCTIVITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL. PHYSICAL REVIEW B 49, 748-751.
Dahm, T., TEWORDT, L., & WERMBTER, S., 1994. SPIN MODE, ELECTRICAL-RESISTIVITY, AND THERMAL-CONDUCTIVITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL. PHYSICAL REVIEW B, 49(1), p 748-751.
T. Dahm, L. TEWORDT, and S. WERMBTER, “SPIN MODE, ELECTRICAL-RESISTIVITY, AND THERMAL-CONDUCTIVITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL”, PHYSICAL REVIEW B, vol. 49, 1994, pp. 748-751.
Dahm, T., TEWORDT, L., WERMBTER, S.: SPIN MODE, ELECTRICAL-RESISTIVITY, AND THERMAL-CONDUCTIVITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL. PHYSICAL REVIEW B. 49, 748-751 (1994).
Dahm, Thomas, TEWORDT, L, and WERMBTER, S. “SPIN MODE, ELECTRICAL-RESISTIVITY, AND THERMAL-CONDUCTIVITY FOR THE 2-DIMENSIONAL HUBBARD-MODEL”. PHYSICAL REVIEW B 49.1 (1994): 748-751.
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