Z. Xie et al., Probing local leakage current and ferroelectricity of Pb(Zr-0.53, Ti-0.47)O-3/YBa2Cu3O7-x heterostructure by a modified atomic force microscope, APPL PHYS L, 76(14), 2000, pp. 1923-1925
In this letter we present an investigation on probing leakage current and f
erroelectricity of Pb(Zr, Ti)O-3(PZT)/YBa2Cu3Ox heterostructure using a mod
ified atomic force microscopy. Inhomogeneities of leakage current and ferro
electric properties were concurrently mapped and quantitatively studied on
a nanometer scale. It shows that microscopically the leakage current can be
described by a model based on space-charge-limited current. (C) 2000 Ameri
can Institute of Physics. [S0003-6951(00)00914-1].