Neutron Scattering and $d$-Wave Symmetry in the Cuprates
Abstract
In this comment we demonstrate that the general conjectures of Fong $et~ al$ on their ${\rm YBa_2Cu_3O_7}$ neutron experiments are realized in concrete calculations of the neutron scattering structure factor $S({\bf q} , \omega )$ in this material. We make predictions for similar experiments in ${\rm La_2Sr_{0.15}Cu_{1.85}O_4}$, which yield a different q-structure due to the different fermiology. Our calculations address both the frequency and wave-vector dependence of the data and (1) include realistic Fermi surface effects (2) are compatible with the normal state data and (3) demonstrate the consistency of a $d$-wave order parameter, in ${\rm YBa_2Cu_3O_7}$ although they appear to be also compatible with an alternate symmetry specific to the orthorhombic bi-layer system.
- Publication:
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arXiv e-prints
- Pub Date:
- March 1995
- DOI:
- 10.48550/arXiv.cond-mat/9503012
- arXiv:
- arXiv:cond-mat/9503012
- Bibcode:
- 1995cond.mat..3012Z
- Keywords:
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- Condensed Matter
- E-Print:
- 1 page comment