On the symmetry of the morphotropic phase boundary in ferroelectric BiScO3–PbTiO3 system

Datta, K.; Gorfman, S.; Thomas, P. A.
December 2009
Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p251901
Academic Journal
A single crystal of (1-x)BiScO3-xPbTiO3 at x=0.64, which is the morphotropic phase boundary composition for this system, has been investigated utilizing two different types of diffractometry. A total of twenty different reciprocal space maps for different Bragg reflections {hkl} were collected to study their individual splittings. It has been shown that to explain the 2θ splittings observed, a two-phase model is necessary. The best model found consists of either two primitive orthorhombic or two primitive monoclinic lattices and the models previously proposed based on powder diffraction data, consisting rhombohedral or tetragonal symmetries, can be rejected.


Related Articles

  • Surface acoustic wave propagation in Y- and Z-cut 0.67PbMgNbO3–0.33PbTiO3 single crystals. Li, Xiuming; Zhang, Rui; Huang, Naixing; Lü, Tianquan; Cao, Wenwu // Journal of Applied Physics;Sep2009, Vol. 106 Issue 5, p054110 

    Surface acoustic wave (SAW) propogation in Y-cut and Z-cut relaxor-based 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 (PMN-33%PT) ferroelectric single crystals poled along [001]c cubic direction has been analyzed theoretically. Characteristic curves were obtained for the phase velocity,...

  • Scale-free optics and diffractionless waves in nanodisordered ferroelectrics. DelRe, E.; Spinozzi, E.; Agranat, A. J.; Conti, C. // Nature Photonics;Jan2011, Vol. 5 Issue 1, p39 

    Wavelength rigidly fixes the diffraction that distorts waves during propagation, and poses fundamental limits to imaging, microscopy and communication. This distortion can be avoided by using waveguides or nonlinearity to produce solitons. In both cases, however, diffraction is only compensated,...

  • Ferroelectric properties of (C[sub 5]H[sub 5]NH)[sub 5]Bi[sub 2]Br[sub 11]. Józków, J.; Jakubas, R.; Bator, G.; Pietraszko, A. // Journal of Chemical Physics;4/22/2001, Vol. 114 Issue 16 

    A new pyridinium compound, (C[sub 5]H[sub 5]NH)[sub 5]Bi[sub 2]Br[sub 11], has been synthesized. The x-ray diffraction studies indicate that its structure is built up of four independent pyridinium cations and isolated Bi[sub 2]Br[sub 11][sup 5-] groups. At room temperature it crystallizes in...

  • Enhanced and Constant-value Transient Diffraction Efficiency from a Recorded Grating in a BaTiO3 Crystal. Sharif, S. M.; Ogusu, K. // Journal of Scientific Research;2011, Vol. 3 Issue 2, p217 

    A simple method has been proposed here to get an enhanced and constant-value transient diffraction efficiency for a large time scale from a recorded grating in an undoped BaTiO3 crystal. After writing a steady-state grating by two cw recording beams (λ=514.5 nm), when the recording beams are...

  • Evidence of short-range antiferroelectric local states in lanthanum- and titanium-modified Sr[sub 0.3]Ba[sub 0.7]Nb[sub 2]O[sub 6] ferroelectric ceramics. Amorín, H.; Pérez, J.; Fundora, A.; Portelles, J.; Guerrero, F.; Soares, M. R.; Martínez, F.; Siqueiros, J. M. // Applied Physics Letters;11/24/2003, Vol. 83 Issue 21, p4390 

    Structural and electrical measurements were performed on lanthanum- and titanium-modified Sr[sub 0.3]Ba[sub 0.7]Nb[sub 2]O[sub 6] ferroelectric (FE) ceramics. Dielectric properties show a well-defined relaxor anomaly around -50 °C with double-loop hysteresis curves from this point to the...

  • Direct-write method for domain inversion patterns in LiNbO3. Dierolf, V.; Sandmann, C. // Applied Physics Letters;5/17/2004, Vol. 84 Issue 20, p3987 

    We have developed a technique to directly write stable ferroelectric domain patterns into lithium niobate crystals using visible light from an argon laser tightly focused to a diffraction limited spot in a confocal luminescence microscope. The patterns produced exhibit feature sizes down to 2...

  • Dielectric relaxor properties of K[sub 0.5]Bi[sub 0.5]TiO[sub 3] ferroelectrics prepared by sol–gel method. Li, Z. F.; Wang, C. L.; Zhong, W. L.; Li, J. C.; Zhao, M. L. // Journal of Applied Physics;8/15/2003, Vol. 94 Issue 4, p2548 

    Lead-free potassium-bismuth titanate, K[SUB0.5]Bi[SUB0.5]TiO[SUB3] (KBT), ferroelectric ceramics were fabricated from the natural sintering of powders prepared by the thermal decomposition of adequate precursor solutions. Their crystal structure was determined by x-ray diffraction, and the...

  • Fabrication of epitaxial nanostructured ferroelectrics and investigation of their domain structures. Han, H.; Lee, K.; Lee, W.; Alexe, M.; Hesse, D.; Baik, S. // Journal of Materials Science;Oct2009, Vol. 44 Issue 19, p5167 

    Nanostructured ferroelectrics are important objects for studies on ferroelectric size effects as well as for applications to memory devices with ultra-high memory density. In the present article, we introduce several approaches for the synthesis of confined ferroelectrics with sizes in and below...

  • Phase grating using a ferroelectric liquid-crystal mixture with a photocurable liquid crystal. Matsumoto, Shin; Goto, Masanao; Choi, Suk-Won; Takanishi, Yoichi; Ishikawa, Ken; Takezoe, Hideo; Kawamura, George; Nishiyama, Isa; Takada, Hirokazu // Journal of Applied Physics;6/1/2006, Vol. 99 Issue 11, p113709 

    We fabricated a switchable phase grating utilizing a ferroelectric liquid crystal (FLC) mixed with a photocurable liquid crystal using a simple one-step process, i.e., photoirradiation to a uniformly aligned FLC cell through a photomask. A fast response of the order of 1 ms was demonstrated for...


Read the Article


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

Try another library?
Sign out of this library

Other Topics