Collective modes in high-temperature superconductors

Dahm T, Manske D, Tewordt L (1998)
Physical Review B 58(18): 12454-12458.

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Abstract
The role of collective modes in various experiments on the cuprates is investigated. We calculate the neutron scattering, photoemission [angle-resolved photoemission spectroscopy (ARPES)], and Raman-scattering intensities below T(c) within the fluctuation-exchange approximation for the two-dimensional Hubbard model. It is shown that the large peak in the dynamical spin susceptibility arises from a weakly damped spin-density-wave collective mode. This gives rise to a dip between the sharp low-energy peak and the higher binding energy hump in the ARPES spectrum. Furthermore, we show that the collective mode of the amplitude fluctuation of the d-wave gap yields a broad peak above the pair-breaking threshold in the B(1g) Raman spectrum. [S0163-1829(98)00142-8].
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Dahm T, Manske D, Tewordt L. Collective modes in high-temperature superconductors. Physical Review B. 1998;58(18):12454-12458.
Dahm, T., Manske, D., & Tewordt, L. (1998). Collective modes in high-temperature superconductors. Physical Review B, 58(18), 12454-12458.
Dahm, T., Manske, D., and Tewordt, L. (1998). Collective modes in high-temperature superconductors. Physical Review B 58, 12454-12458.
Dahm, T., Manske, D., & Tewordt, L., 1998. Collective modes in high-temperature superconductors. Physical Review B, 58(18), p 12454-12458.
T. Dahm, D. Manske, and L. Tewordt, “Collective modes in high-temperature superconductors”, Physical Review B, vol. 58, 1998, pp. 12454-12458.
Dahm, T., Manske, D., Tewordt, L.: Collective modes in high-temperature superconductors. Physical Review B. 58, 12454-12458 (1998).
Dahm, Thomas, Manske, D, and Tewordt, L. “Collective modes in high-temperature superconductors”. Physical Review B 58.18 (1998): 12454-12458.
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