Layered charge-density waves with nanoscale coherence in Y Ba 2 Cu 3 O 7 − δ

摘要: We have used a scanning tunneling microscope to investigate the electronic state of CuO chains in $\mathrm{Y}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$. The observed one-dimensional charge modulations form nanoscale coherent domains, exhibiting an existence interchain correlations. For Zn-substituted crystal, influence local destruction planar superconductivity is not seen. These results are explained terms very short-range charge-density waves formed monolayer with atomic vacancies.