Low-Energy Spin Dynamics of CuO Chains in YBa2Cu3O6+x
نویسنده
چکیده
We study the spin fluctuation dynamics of Cu-O chains in the oxygen deficient planes of YBa2Cu3O6+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.
منابع مشابه
Quasi One-Dimensional Spin Fluctuations in YBa2Cu3O6+x
We study the spin fluctuation of the oxygen deficient planes of YBa2Cu3O6+x. The Cu-O chains that constitute these planes are described by a model that includes antiferromagnetic interactions between spins and Kondo-like scattering of oxygen holes. The spectrum of magnetic excitations shows the presence of incommensurate dynamic fluctuations along the direction of the chains. The presence of it...
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