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Theory of Neutron Scattering in the Normal and Superconducting State of YBCO

D. Z. Liu·K. Levin·Y. Zha
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Abstract

We analyze neutron experiments on $\ybco$ at various stoichiometries in the superconducting state, within the context of a bi-layer theory which yields good agreement with the normal state Cu-NMR and neutron data as a function of ω, q and T. A d-wave superconducting state exhibits peaks at q = ( π, π, π) and sharp maxima as a function of ω, at twice the gap frequency. This behavior may have been observed experimentally. The counterpart behavior for other choices of order parameter symmetry is discussed.

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D. Z. Liu, K. Levin, Y. Zha. 1995-04-24. Theory of Neutron Scattering in the Normal and Superconducting State of YBCO. https://doi.org/10.1103/physrevlett.75.4130

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