THEORY OF MAGNETIC NEUTRON-SCATTERING FOR S-WAVE AND D-WAVE SUPERCONDUCTIVITY IN CUPRATES

Dahm T, RIECK CT, TEWORDT L, WERMBTER S (1994)
Physica C Superconductivity 223(1-2): 179-188.

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Abstract
We present a microscopic theory for strong spin-fluctuation exchange interaction and an additional electron-phonon interaction alpha2F(q, omega). For an appropriate alpha2F being independent of q we find s-wave superconductivity, whereas for an alpha2F which is strongly suppressed at larger q due to strong electron correlations we find d-wave superconductivity. The resulting spectral weights of the dynamic spin susceptibility are in qualitative agreement with the neutron scattering data obtained on La1.86Sr0.14CuO4 and YBa2Cu3O6.92, respectively. For the d-wave pairing case the electronic thermal conductivity and the low-frequency electrical conductivity exhibit broad, but relatively small peaks below T(c). The quasiparticle relaxation rate decreases rapidly as T drops below T(c), in qualitative agreement with microwave and ultrafast laser measurements on YBCO and BISCO.
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Dahm T, RIECK CT, TEWORDT L, WERMBTER S. THEORY OF MAGNETIC NEUTRON-SCATTERING FOR S-WAVE AND D-WAVE SUPERCONDUCTIVITY IN CUPRATES. Physica C Superconductivity. 1994;223(1-2):179-188.
Dahm, T., RIECK, C. T., TEWORDT, L., & WERMBTER, S. (1994). THEORY OF MAGNETIC NEUTRON-SCATTERING FOR S-WAVE AND D-WAVE SUPERCONDUCTIVITY IN CUPRATES. Physica C Superconductivity, 223(1-2), 179-188.
Dahm, T., RIECK, C. T., TEWORDT, L., and WERMBTER, S. (1994). THEORY OF MAGNETIC NEUTRON-SCATTERING FOR S-WAVE AND D-WAVE SUPERCONDUCTIVITY IN CUPRATES. Physica C Superconductivity 223, 179-188.
Dahm, T., et al., 1994. THEORY OF MAGNETIC NEUTRON-SCATTERING FOR S-WAVE AND D-WAVE SUPERCONDUCTIVITY IN CUPRATES. Physica C Superconductivity, 223(1-2), p 179-188.
T. Dahm, et al., “THEORY OF MAGNETIC NEUTRON-SCATTERING FOR S-WAVE AND D-WAVE SUPERCONDUCTIVITY IN CUPRATES”, Physica C Superconductivity, vol. 223, 1994, pp. 179-188.
Dahm, T., RIECK, C.T., TEWORDT, L., WERMBTER, S.: THEORY OF MAGNETIC NEUTRON-SCATTERING FOR S-WAVE AND D-WAVE SUPERCONDUCTIVITY IN CUPRATES. Physica C Superconductivity. 223, 179-188 (1994).
Dahm, Thomas, RIECK, CT, TEWORDT, L, and WERMBTER, S. “THEORY OF MAGNETIC NEUTRON-SCATTERING FOR S-WAVE AND D-WAVE SUPERCONDUCTIVITY IN CUPRATES”. Physica C Superconductivity 223.1-2 (1994): 179-188.
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