Strong-coupling theory of electronic Raman scattering in high-temperature superconductors

Dahm T, Manske D, Tewordt L (1999)
PHYSICAL REVIEW B 59(22): 14740-14747.

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Abstract
We have calculated the response function for electronic Raman scattering within the fluctuation-exchange approximation for the two-dimensional Hubbard model. Below T-c. a large pair-breaking peak and a gap develop in the B-1g spectrum while the effect of superconductivity on the B-2g spectrum is much smaller, In order to investigate the underdoped regime we study the influence of a phenomenologically introduced pseudogap. In the normal state we find that this pseudogap leads for decreasing temperature to development of a d-wave gap structure in the density of states which merges continuously into the superconducting spectrum. A corresponding pair-breaking peak evolves continuously in the B-1g Raman spectrum as T decreases in the normal state and below T-c. We discuss our results in connection with recent tunneling, optical conductivity, and Raman data on the cuprates. [S0163-1829(99)13721-4].
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Dahm T, Manske D, Tewordt L. Strong-coupling theory of electronic Raman scattering in high-temperature superconductors. PHYSICAL REVIEW B. 1999;59(22):14740-14747.
Dahm, T., Manske, D., & Tewordt, L. (1999). Strong-coupling theory of electronic Raman scattering in high-temperature superconductors. PHYSICAL REVIEW B, 59(22), 14740-14747.
Dahm, T., Manske, D., and Tewordt, L. (1999). Strong-coupling theory of electronic Raman scattering in high-temperature superconductors. PHYSICAL REVIEW B 59, 14740-14747.
Dahm, T., Manske, D., & Tewordt, L., 1999. Strong-coupling theory of electronic Raman scattering in high-temperature superconductors. PHYSICAL REVIEW B, 59(22), p 14740-14747.
T. Dahm, D. Manske, and L. Tewordt, “Strong-coupling theory of electronic Raman scattering in high-temperature superconductors”, PHYSICAL REVIEW B, vol. 59, 1999, pp. 14740-14747.
Dahm, T., Manske, D., Tewordt, L.: Strong-coupling theory of electronic Raman scattering in high-temperature superconductors. PHYSICAL REVIEW B. 59, 14740-14747 (1999).
Dahm, Thomas, Manske, D, and Tewordt, L. “Strong-coupling theory of electronic Raman scattering in high-temperature superconductors”. PHYSICAL REVIEW B 59.22 (1999): 14740-14747.
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