Low-Energy Spin Dynamics of CuO Chains in YBa(2)Cu(3)O(6+x)

Details Low-Energy Spin Dynamics of CuO Chains in YBa(2)Cu(3)O(6+x) Low-Energy Spin Dynamics of CuO Chains in YBa(2)Cu(3)O(6+x)

1999-09-06

arxiv.org/abs/cond-mat/9909081v1

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, 2 eps figures, LT22 proceedings, phbauth style file included

Scientific paper

10.1016/S0921-4526(99)02534-X

We study the spin fluctuation dynamics of Cu-O chains in the oxygen deficient planes of YBa(2)Cu(3)O(6+x). The chains are described by a model including antiferromagnetic interactions between the spins and Kondo-like scattering of the oxygen holes by the copper spins. There are incommensurate spin fluctuations along the direction of the chains. The dynamic structure factor of this system is qualitatively different from that of a quasi one-dimensional localized antiferromagnet due to the presence of itinerant holes. We compute the dynamic structure factor that could be measured in neutron scattering experiments.

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