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paper

Sliding Density-Wave in Sr_{14}Cu_{24}O_{41} Ladder Compounds

arXiv:cond-mat/0207666 · doi:10.1126/science.1070481

Abstract

We used transport and Raman scattering measurements to identify the insulating state of self-doped spin 1/2 two-leg ladders of Sr_{14}Cu_{24}O_{41} as a weakly pinned, sliding density wave with non-linear conductivity and a giant dielectric response that persists to remarkably high temperatures.