%0 Conference Paper
%K hysteresis
%K Ferroelectric materials
%K ferroelectricity
%K piezoelectricity
%K Lead compounds
%K Coercive voltage
%K Barium titanate
%K Nanotubes
%K Wetting
%K Barium titanate nanotubes
%K Ferroelectric lead zirconate titanate
%K Hysterisis loop
%A Y Luo
%A I Szafraniak
%A V Nagarajan
%A R.B Wehrspohn
%A M Steinhart
%A J.H Wendorff
%A N.D Zakharov
%A Ramamoorthy Ramesh
%A M Alexe
%B Integrated Ferroelectrics
%D 2003
%G eng
%P 1513-1520
%R 10.1080/10584580390260009
%T Ferroelectric lead zirconate titanate and barium titanate nanotubes
%V 59
%X Wetting of the pore walls of porous templates is a simple and convenient method to prepare nanotubes. Ferroelectric lead zirconate titanate and barium titanate nanotubes were fabricated by wetting of porous silicon templates of polymeric precursors. The ferro- and piezoelectric properties of an individual ferroelectric either of a PZT or a BaTiO3 nanotube were electrically characterized by measuring the local piezoelectric hysteresis. A sharp switching at the coercive voltage of about 2 V was shown from the hysterisis loop. The corresponding effective remnant piezoelectric coefficient is about 90 pm/V. We also expect that free-standing ferroelectric nanotubes obtained by partial etching of the silicon template will be used as building blocks of miniaturized devices and can have a significant impact in the field of nano-electromechanical systems.