Dynamical charge inhomogeneity and crystal-field fluctuations for 4f ions in high-Tc cuprates

Details Dynamical charge inhomogeneity and crystal-field fluctuations for 4f ions in high-Tc cuprates Dynamical charge inhomogeneity and crystal-field fluctuations for 4f ions in high-Tc cuprates

2003-10-16

arxiv.org/abs/cond-mat/0310370v1

Physics

Condensed Matter

Superconductivity

4 pages

Scientific paper

10.1134/1.1842891

The main relaxation mechanism of crystal-field excitations in rare-earth ions in cuprates is believed to be provided by the fluctuations of crystalline electric field induced by a dynamic charge inhomogeneity generic for the doped cuprates. We address the generalized granular model as one of the model scenario for such an ingomogeneity where the cuprate charge subsystem remind that of Wigner crystal with the melting transition and phonon-like positional excitation modes. Formal description of R-ion relaxation coincides with that of recently suggested magnetoelastic mechanism.

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