The fabrication and characterization of PbTi03 nanomesas realized on nanostructured SrRu03/SrTi03 templates (original) (raw)

Nanotechnology, 2009

Abstract

We report the fabrication of PbTi0 3 nanomesas down to 30 nm lateral size and 4 nm high on nanostructured SrRu0 3 /SrTi0 3 templates by off-axis radio frequency magnetron sputtering. The templates were prepared using a top-down lithography approach based on scanning tunneling microscopy. The growth rate of the PbTi0 3 nanomesas was found to decrease with increasing growth temperature as well as with shrinking template size. Piezoresponse force microscopy measurements for the PbTi0 3 nanomesas showed a strong increase in response with decreasing lateral size. A decrease of the coercive voltage was also observed for the same lateral size range. This laterally size-dependent behavior is attributed to reduction of in-plane strain, when shrinking the nanomesa lateral dimensions.

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