TITLE

Effect of ferroelastic twin walls on local polarization switching: Phase-field modeling

AUTHOR(S)
Choudhury, S.; Zhang, J. X.; Li, Y. L.; Chen, L. Q.; Jia, Q. X.; Kalinin, S. V.
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/20/2008, Vol. 93 Issue 16, p162901
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Local polarization switching in epitaxial ferroelectric thin films in the presence of ferroelastic domain walls was studied using phase-field approach. The nucleation bias profile across a twin wall was analyzed, and the localization of preferential nucleation sites was established. This analysis was further extended to a realistic domain structure with multiple twin boundaries. It was observed that the local nucleation voltage required for a 180° domain switching is closely related to the number of such local defects.
ACCESSION #
35279343

 

Related Articles

  • Observation of the polarization of domains in ferroelectric thin films using x-ray interference. Thompson, Carol; Foster, Christopher M. // Applied Physics Letters;12/15/1997, Vol. 71 Issue 24, p3516 

    Investigates polarization of domains in epitaxial ferroelectric thin films using x-ray interference. Analysis of interference between the film and substrate; Presentation of film x-ray scattering grown by chemical vapor deposition; Implication for the application of ferroelectric film properties.

  • Stress-induced depolarization of (Pb, La)TiO[sub 3] ferroelectric thin films by nanoindentation. Alguero´, M.; Bushby, A. J.; Reece, M. J.; Poyato, R.; Ricote, J.; Calzada, M. L.; Pardo, L. // Applied Physics Letters;12/3/2001, Vol. 79 Issue 23, p3830 

    Electrical depolarization has been observed in lanthanum-modified lead titanate ferroelectric thin films stressed by nanoindentation. A spherical metallic indenter was used as a top electrode to locally pole the films and then to measure the depolarization current intensity. The current...

  • Asymmetrical leakage currents as a possible origin of the polarization offsets observed in compositionally graded ferroelectric films. Bouregba, R.; Poullain, G.; Vilquin, B.; Le Rhun, G. // Journal of Applied Physics;5/1/2003, Vol. 93 Issue 9, p5583 

    Offsets of hysteresis loops along the polarization axis have been observed on a step graded Pb(Zr,Ti)O[sub 3] (PZT) thin film using a Sawyer–Tower (ST) circuit. However, the same effect may be artificially reproduced by adding adequate resistors and diodes in parallel with a nongraded PZT...

  • Imaging three-dimensional polarization in epitaxial polydomain ferroelectric thin films. Ganpule, C. S.; Nagarajan, V.; Hill, B. K.; Roytburd, A. L.; Williams, E. D.; Ramesh, R.; Alpay, S. P.; Roelofs, A.; Waser, R.; Eng, L. M. // Journal of Applied Physics;2/1/2002, Vol. 91 Issue 3, p1477 

    Voltage-modulated scanning force microscopy (Piezoresponse microscopy) is applied to investigate the domain structure in epitaxial PbZr[sub 0.2]Ti[sub 0.8]O[sub 3] ferroelectric thin films grown on (001) SrTiO[sub 3]. By monitoring the vertical and lateral differential signals from the...

  • Abrupt appearance of the domain pattern and fatigue of thin ferroelectric films. Bratkovsky, A. M.; Levanyuk, A. P. // AIP Conference Proceedings;2000, Vol. 535 Issue 1, p218 

    We study the domain structure in ferroelectric thin films with a 'passive' layer (material with damaged ferroelectric properties) at the interface between the film and electrodes within a continuous medium approximation. An abrupt transition from a monodomain to a polydomain state has been found...

  • Atomic force and scanning electron microscopic observations of surface and domain structures of.... Tsunekawa, S.; Fukuda, T. // Applied Physics Letters;9/15/1997, Vol. 71 Issue 11, p1486 

    Examines the surface ferroelectric domain structures of BaTiO[sub 3] crystalline films and bulk crystals. Use of atomic force and scanning electron microscopy; Influence of the surface structures on the ferroelectricity of BaTiO[sub 3] films; Generation of reconstructionlike structures.

  • Nanoscale studies of domain wall motion in epitaxial ferroelectric thin films. Paruch, Patrycja; Giamarchi, Thierry; Tybell, Thomas; Triscone, Jean-Marc // Journal of Applied Physics;9/1/2006, Vol. 100 Issue 5, p051608 

    Atomic force microscopy was used to investigate ferroelectric switching and nanoscale domain dynamics in epitaxial Pb(Zr0.2Ti0.8)O3 thin films. Measurements of the writing time dependence of domain size reveal a two-step process in which nucleation is followed by radial domain growth. During...

  • Role of 90° domains in lead zirconate titanate thin films. Ganpule, C. S.; Ganpule, C.S.; Nagarajan, V.; Li, H.; Ogale, A. S.; Ogale, A.S.; Steinhauer, D. E.; Steinhauer, D.E.; Aggarwal, S.; Williams, E.; Ramesh, R.; De Wolf, P. // Applied Physics Letters;7/10/2000, Vol. 77 Issue 2 

    We report observations of the ferroelectric domain structure in epitaxial lead zirconate titanate (PbZr[sub 0.2]Ti[sub 0.8]O[sub 3]) ferroelectric thin films using piezoresponse microscopy. By manipulating the film thickness, a uniform two-dimensional grid of 90° domains (a domains, i.e., c...

  • Domain nucleation and relaxation kinetics in ferroelectric thin films. Ganpule, C. S.; Ganpule, C.S.; Nagarajan, V.; Ogale, S. B.; Ogale, S.B.; Roytburd, A. L.; Roytburd, A.L.; Williams, E. D.; Williams, E.D.; Ramesh, R. // Applied Physics Letters;11/13/2000, Vol. 77 Issue 20 

    The time-dependent relaxation of the remanent polarization in epitaxial lead zirconate titanate (PbZr[sub 0.2]Ti[sub 0.8]O[sub 3]) ferroelectric thin films, containing a uniform two-dimensional grid of 90° domains (c axis in the plane of the film), is examined using piezoresponse microscopy....

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