TITLE

Polarization imprint in ordered arrays of epitaxial ferroelectric nanostructures

AUTHOR(S)
Wenhui Ma, Kanti; Hesse, Dietrich
PUB. DATE
April 2004
SOURCE
Applied Physics Letters;4/12/2004, Vol. 84 Issue 15, p2871
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
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 nanostructures of various dimensions using piezoresponse force microscopy. Piezoresponse domain imaging revealed a preferential downward prepolarization state for the as-prepared nanostructures, and consistently piezoresponse hysteresis loops exhibited negative polarization offsets. The offsets are suggested to be due to locked nonswitchable domains in an interface near region with a thickness of 7–14 nm. © 2004 American Institute of Physics.
ACCESSION #
12754108

 

Related Articles

  • Well-ordered arrays of pyramid-shaped ferroelectric BaTiO[sub 3] nanostructures. Ma, Wenhui; Harnagea, Catalin; Hesse, Dietrich; Gösele, Ulrich // Applied Physics Letters;11/3/2003, Vol. 83 Issue 18, p3770 

    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...

  • High-speed switching of nanoscale ferroelectric domains in congruent single-crystal LiTaO[sub 3]. Fujimoto, Kenjiro; Cho, Yasuo // Applied Physics Letters;12/22/2003, Vol. 83 Issue 25, p5265 

    The nanodomain reversal characteristics of congruent LiTaO[sub 3] (CLT) single crystal are investigated. It is found that fast nanosecond domain switching can be achieved by reducing the sample thickness, even for CLT, which contains many Li vacancy defects that pin domain-wall movement. As an...

  • Correlation between nanoscale and nanosecond resolved ferroelectric domain dynamics and local mechanical compliance. Polomoff, N. A.; Rakin, A.; Lee, S.; Palumbo, V.; Yu, P.; Chu, Y. H.; Ramesh, R.; Huey, B. D. // Journal of Applied Physics;May2011, Vol. 109 Issue 9, p091607 

    The local dynamics of ferroelectric domain polarization are uniquely investigated with sub-20-nm resolved maps of switching times, growth velocities, and growth directions. This is achieved by analyzing movies of hundreds of consecutive high speed piezo force microscopy images, which record...

  • Three dimensional piezoresponse force microscopy polarization difference maps. Jing, Yuanyuan; Blendell, John E.; Bowman, Keith J. // Journal of Applied Physics;Apr2011, Vol. 109 Issue 7, p074110 

    We describe a technique, called polarization difference maps (PDMs), that fully reveals ferroelectric switching of regions within individual grains. Using PDMs, domains that have undergone 90° and 180° switching were mapped for a 100 nm thick polycrystalline lead zirconate titanate (PZT)...

  • 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...

  • Polarization dynamics in a ferroelectric relaxor excited by short pulses. Boscolo, I.; Cialdi, S. // Applied Physics Letters;4/14/2003, Vol. 82 Issue 15, p2500 

    Polarization dynamics in a relaxor ferroelectric is investigated by exciting samples, set at different temperatures, with short high voltage (≈ 1 kV) rectangular pulses (≈200 ns) and then by measuring the charge carried to the sample, i.e., the polarization. Further important...

  • Polarization mechanism of ferroelectric lattice instability in crystals. Kvyatkovskii, O. E. // Physics of the Solid State;Apr97, Vol. 39 Issue 4, p602 

    It is shown that the intercell dipole-dipole (polarization) interaction lowers the frequencies of the polar transverse-optical (TO) lattice vibrational modes (to a greater extent, the larger the corresponding dipole oscillator strengths) and can be a cause of ferroelectric instability in...

  • Polarization Anomalies in a Relaxor Ferroelectric. Gladkii, V. V.; Kirikov, V. A.; Nekhlyudov, S. V.; Volk, T. R.; Ivleva, L. I. // JETP Letters;1/10/2000, Vol. 71 Issue 1, p24 

    With a strontium barium niobate crystal used as an example, it is experimentally demonstrated that relaxor ferroelectrics exhibit pronounced polarization anomalies, which manifest themselves in the difference between the trajectories of the dielectric hysteresis observed in several repeated...

  • Manifestation of a Structural Disorder in the Polarization Kinetics of a KD[sub 2]PO[sub 4] Ferroelectric. Gladkii, V. V.; Kirikov, V. A. // Physics of the Solid State;Jan2001, Vol. 43 Issue 1, p113 

    Crystalline potassium dideuterophosphate subjected to a slowly varying or a dc electric field has been found to exhibit polarization features which indicate the presence of a structural disorder characteristic of inhomogeneous systems. Continuous distribution spectra of the relaxation time are...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics