Coherence, incoherence and scaling along the c axis of YBa_2Cu_3O_{6+x}

C. C. Homes, S. V. Dordevic, D. A. Bonn +3

The optical properties of single crystals of YBa_2Cu_3O_{6+x} have been examined along the c axis above and below the critical temperature (T_c) for a wide range of oxygen dopings.…