Theory of Neutron Scattering in the Normal and Superconducting States of YBa2Cu3O6+x

D. Z. Liu; Y. Zha; K. Levin

doi:10.1103/PhysRevLett.75.4130

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Theory of Neutron Scattering in the Normal and Superconducting States of YBa2Cu3O6+x

D. Z. Liu, Y. Zha, K. Levin

DOI 10.1103/PhysRevLett.75.4130 · Physical Review Letters

T1

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Abstract

We analyze neutron experiments on YBa2Cu3O6+x at various stoichiometries in the superconducting state, within the context of a bilayer theory that 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, as well as for another cuprate La1.85Sr0.15CuO4, is discussed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown