Well-ordered arrays of pyramid-shaped ferroelectric BaTiO[sub 3] nanostructures

Ma, Wenhui; Harnagea, Catalin; Hesse, Dietrich; Gösele, Ulrich
November 2003
Applied Physics Letters;11/3/2003, Vol. 83 Issue 18, p3770
Academic Journal
Monolayers of monodisperse latex spheres of micron size were used as deposition masks to fabricate arrays of ferroelectric nanostructures by pulsed laser deposition using a BaTiO[sub 3] target. First, arrays of well-ordered structures were prepared on SrTiO[sub 3]:Nb (100) single-crystal substrates at room temperature. Investigations of these isolated as-deposited nanostructures by atomic force microscopy revealed that they have a pyramid-like shape with about 200 nm lateral size at half their height and form a regular hexagonal pattern. Then postdeposition annealing was used to crystallize the nanostructures. The ferroelectric properties of the crystalline structures were investigated by scanning force microscopy in piezoresponse mode. Piezoelectric hysteresis loops were recorded, demonstrating that the barium titanate nanopyramids have a remanent polarization and are switchable by an electric field, i.e., they are indeed ferroelectric. © 2003 American Institute of Physics.


Related Articles

  • Polarization imprint in ordered arrays of epitaxial ferroelectric nanostructures. Wenhui Ma, Kanti; Hesse, Dietrich // Applied Physics Letters;4/12/2004, Vol. 84 Issue 15, p2871 

    Sub 50-nm-high BaTiO3 epitaxial nanostructures were fabricated into well-ordered arrays on SrTiO3:Nb (001) single-crystal substrates using pulsed laser deposition through monolayer masks of monodisperse latex spheres (1 or 0.5 μm) and postdeposition annealing. Imprint was investigated in...

  • Epitaxial, cation-ordered, ferroelectric PbSc0.5Ta0.5O3 thin films prepared by pulsed laser deposition. Chopra, Anuj; Birajdar, Balaji I.; Yunseok Kim; Vrejoiu, Ionela; Alexe, Marin; Hesse, Dietrich // Applied Physics Letters;7/13/2009, Vol. 95 Issue 2, p022907 

    We report on growth and ferroelectric properties of cation-ordered, epitaxial PbSc0.5Ta0.5O3 (100) films. Single phase epitaxial films were grown on vicinal SrTiO3 (100) substrates with a layer of SrRuO3 as bottom electrode by pulsed laser deposition. Their crystal orientation, topography, and...

  • Electroluminescence from monolayer ZnO nanoparticles using dry coating technique. Chun-Yu Lee; Yuen-Yung Hui; Wei-Fang Su; Ching-Fuh Lin // Applied Physics Letters;6/30/2008, Vol. 92 Issue 26, p261107 

    We report ultraviolet electroluminescence from ZnO nanoparticle-based devices prepared by the dry-coating technique. With dry-coating process, the structure of the ZnO nanoparticle monolayer (90 nm) in the device can be easily achieved. The method reduces the density of pinhole defects in the...

  • New fabrication method for highly oriented J aggregates dispersed in polymer films. Misawa, Kazuhiko; Ono, Hiroshi // Applied Physics Letters;8/2/1993, Vol. 63 Issue 5, p577 

    Presents a vertical spin coating method utilized in fabricating highly oriented J aggregates dispersed in polymer thin films. Effects of intermolecular interaction between dipole moments on J aggregates; Impact of higher viscosity solutions on the quality of films; Absence of linear dichroism...

  • Growth and multiferroic properties of hexagonal HoMnO3 films. Kim, J.-W.; Schultz, L.; Dörr, K.; Van Aken, B. B.; Fiebig, M. // Applied Physics Letters;1/1/2007, Vol. 90 Issue 1, p012502 

    Hexagonal, twin-free HoMnO3 (0001) films of 25–240 nm thickness were grown epitaxially on Y2O3:ZrO2(111) substrates using pulsed laser deposition. Ferroelectric polar order and Mn3+ antiferromagnetism were observed by optical second harmonic generation. Magnetization data reveal Ho3+...

  • Materials science: Build your own superlattice. Rijnders, Guus; Blank, Dave H. A. // Nature;1/27/2005, Vol. 433 Issue 7024, p369 

    The article reports on the use of artificial materials from oxide building blocks for making ferroelectrics. To grow the films, researcher Lee and co-workers used pulsed laser deposition, a technique that is particularly suitable for growing multi-component oxide structures. A plasma is created...

  • Structures and electrical properties of Bi5FeTi3O15 thin films. Zhang, Shan-Tao; Chen, Yan-Feng; Liu, Zhi-Guo; Ming, Nai-Ben; Wang, Jia; Cheng, Guang-Xu // Journal of Applied Physics;5/15/2005, Vol. 97 Issue 10, p10Q302 

    Thin films of layered ferroelectric oxide Bi5FeTi3O15 have been fabricated on Pt-coated Si substrates by pulsed laser deposition. Temperature-dependent Raman studies reveal the phase-transition temperature of 550 °C, consistent with other reports. A new mode at 685 cm-1 is observed and...

  • Well-ordered large-area arrays of epitaxial ferroelectric (Bi,La)4Ti3O12 nanostructures fabricated by gold nanotube-membrane lithography. Sung Kyun Lee; Woo Lee; Alexe, Marin; Nielsch, Kornelius; Hesse, Dietrich; Gösele, Ulrich // Applied Physics Letters;4/11/2005, Vol. 86 Issue 15, p152906 

    Two-dimensionally well-ordered, large-area arrays of epitaxial, ferroelectric, La-substituted Bi4Ti3O12 (BLT) nanostructures are prepared using gold nanotube membranes as a liftoff mask. Epitaxial nanostructures with a height of about 65 nm and a lateral size of about 150 nm, with either (001)...

  • Piezoelectric response of nanoscale PbTiO3 in composite PbTiO3-CoFe2O4 epitaxial films. Tan, Zhuopeng; Roytburd, Alexander L.; Levin, Igor; Seal, Katyayani; Rodriguez, Brian J.; Jesse, Stephen; Kalinin, Sergei; Baddorf, Art // Applied Physics Letters;8/18/2008, Vol. 93 Issue 7, p074101 

    Piezoelectric properties of PbTiO3 in 1/3PbTiO3-2/3CoFe2O4 transverse epitaxial nanostructures on differently oriented SrTiO3 were analyzed using conventional and switching-spectroscopy piezoelectric force microscopy. The results confirmed that the individual PbTiO3 nanocolumns in the CoFe2O4...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics