TITLE

The enhanced and optimal piezoelectric coefficients in single crystalline barium titanate with engineered domain configurations

AUTHOR(S)
Liu, Dan; JiangYu Li, Dan
PUB. DATE
August 2003
SOURCE
Applied Physics Letters;8/11/2003, Vol. 83 Issue 6, p1193
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, we report a micromechanical analysis to explain the enhanced piezoelectric coefficients in ferroelectric single crystals poled along a nonpolar axis, where the coexistence of several variants leads to a complicated domain configuration. The engineered domain configuration in the crystal is constructed first using energy minimization approach, and the effective moduli of single crystal with engineered domain configuration is then determined using homogenization theory. Following this procedure, we calculate the effective electromechanical moduli of tetragonal barium titanate poled along [111] direction, where the piezoelectric coefficient d[sub 33] is found to be 70% higher than those poled along [001], consistent with experimental observation. Piezoelectric coefficient d[sub 32] is also found to be 114% higher. In addition, we notice that poling along [111] direction does not lead to the optimal domain configuration, since barium titanate poled along [110] direction has much higher d[sub 32] and d[sub 33]. The analysis reveals that much higher electromechanical coupling can be obtained in ferroelectric crystals with engineered domain configurations, and offers insight on the design and optimization of ferroelectrics for enhanced functional properties. © 2003 American Institute of Physics.
ACCESSION #
10465382

 

Related Articles

  • Piezoelectric response from rotating polarization. Fu, Huaxiang; Cohen, R. E. // AIP Conference Proceedings;2000, Vol. 535 Issue 1, p143 

    Piezoelectric response induced by rotating the polarization, which occurs when the external field is not in the same direction as the internal spontaneous polarization, is studied using a first-principles approach. The piezo-response of the rhombohedral BaTiO[sub 3] to the field along the <001>...

  • Polarization rotation mechanism for ultrahigh electromechanical response in single-crystal... Huaxiang Fu; Cohen, Ronald E. // Nature;1/20/2000, Vol. 403 Issue 6767, p281 

    Presents a first principle study of the ferroelectric perovskite, BaTiO3, which is similar to single-crystal PZN-PT. Piezoelectric response driven by external electric field-induced polarization rotation; Characteristic of a good piezoelectric material; Manifestation of polarization rotation...

  • Growth and electrical properties of large size Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 crystals prepared by the vertical Bridgman technique. Guisheng Xu; Kai Chen; Danfeng Yang; Junbao Li // Applied Physics Letters;1/15/2007, Vol. 90 Issue 3, p032901 

    Relaxor-based ferroelectric single crystals Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 (PIMNT) have been grown directly from their melt using the vertical Bridgman method, and their boules have reached the size of [lowercase_phi_synonym]45×80 mm. The as-grown PIMNT28/40/32...

  • Factors influencing the piezoelectric behaviour of PZT and other �morphotropic phase boundary� ferroelectrics. Bell, Andrew J. // Journal of Materials Science;Jan2006, Vol. 41 Issue 1, p13 

    Recent studies of the mechanism of piezoelectricity in PZT and related materials are reviewed and complemented by new analyses based on the Landau-Ginzburg-Devonshire theory of ferroelectricity. Particular attention is given to the nature of the morphotropic phase boundary between the tetragonal...

  • Piezoelectric and ferroelectric properties of [Bi0.5(Na1-x-yKxLiy)0.5]TiO3 lead-free piezoelectric ceramics. Dunmin Lin; Dingquan Xiao; Jianguo Zhu; Ping Yu // Applied Physics Letters;2/6/2006, Vol. 88 Issue 6, p062901 

    The piezoelectric and ferroelectric properties of [Bi0.5(Na1-x-yKxLiy)0.5]TiO3 (BNKLT-x/y) lead-free piezoelectric ceramics were studied. The ceramics show excellent piezoelectric and ferroelectric properties, and the optimum properties measured are as follows: piezoelectric constant d33=231...

  • Self-assembled nanoscale ferroelectrics. Alexe, Marin; Hesse, Dietrich // Journal of Materials Science;Jan2006, Vol. 41 Issue 1, p1 

    Multifunctional ferroelectric materials offer a wide range of useful properties, from switchable polarization that can be applied in memory devices to piezoelectric and pyroelectric properties used in actuators, transducers and thermal sensors. At the nanometer scale, however, material...

  • Electrical control of antiferromagnetic domains in multiferroic BiFeO3 films at room temperature. Zhao, T.; Scholl, A.; Zavaliche, F.; Lee, K.; Barry, M.; Doran, A.; Cruz, M. P.; Chu, Y. H.; Ederer, C.; Spaldin, N. A.; Das, R. R.; Kim, D. M.; Baek, S. H.; Eom, C. B.; Ramesh, R. // Nature Materials;Oct2006, Vol. 5 Issue 10, p823 

    Multiferroic materials, which offer the possibility of manipulating the magnetic state by an electric field or vice versa, are of great current interest. In this work, we demonstrate the first observation of electrical control of antiferromagnetic domain structure in a single-phase multiferroic...

  • Large piezoelectric strains from polarization graded ferroelectrics. Zhong, S.; Ban, Z.-G.; Alpay, S. P.; Mantese, J. V. // Applied Physics Letters;10/2/2006, Vol. 89 Issue 14, p142913 

    The potential applications of polarization graded ferroelectrics as high performance sensors and actuators are theoretically investigated. A static bending can be expected in polarization graded ferroelectric plates, forming a vertical displacement. This is due to the built-in strain gradient...

  • Slow relaxation of piezoelectric response in CdZnTe ferroelectric semiconductor single crystals. Ke, Shanming; Huang, Haitao; Wang, Tao; Fan, Huiqing; Jie, Waiqi; Chan, H. L. W. // Applied Physics Letters;10/15/2007, Vol. 91 Issue 16, p162901 

    The piezoelectric response in Cd0.9Zn0.1Te (CZT) semiconductor single crystals has been investigated by analyzing room temperature impedance spectra. The polarization is significantly influenced by light illumination. A slow relaxation process of the piezoelectric response has been observed with...

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