TITLE

Sharp ferroelectric phase transition in strained single-crystalline SrRuO[sub 3]/Ba[sub 0.7]Sr[sub 0.3]TiO[sub 3]/SrRuO[sub 3] capacitors

AUTHOR(S)
Dittmann, R.; Plonka, R.; Vasco, E.; Pertsev, N.A.; He, J.Q.; Jia, C.L.; Hoffmann-Eifert, S.; Waser, R.
PUB. DATE
December 2003
SOURCE
Applied Physics Letters;12/15/2003, Vol. 83 Issue 24, p5011
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Single-crystalline all-perovskite SrRuO[sub 3]/Ba[sub 0.7]Sr[sub 0.3]TiO[sub 3]/SrRuO[sub 3] thin-film capacitors epitaxially grown on SrTiO[sub 3] exhibit a sharp paraelectric-to-ferroelectric phase transition at 350 K with a maximum permittivity of about 6660. This value is comparable to that of bulk ceramics and exceeds by several times the highest values reported for Ba[sub 0.7]Sr[sub 0.3]TiO[sub 3] thin film capacitors. The observed thickness dependence of the dielectric response is analyzed with the aid of a thermodynamic theory. It is shown that a weak decrease of the permittivity with the Ba[sub 0.7]Sr[sub 0.3]TiO[sub 3] thickness decreasing from 200 to 10 nm can be explained solely by the thickness-dependent strain relaxation in epitaxial films without assuming the presence of low-permittivity layers at the film/electrode interfaces. © 2003 American Institute of Physics.
ACCESSION #
11649654

 

Related Articles

  • Electrothermal properties of perovskite ferroelectric films. Zhang, J.; Heitmann, A. A.; Alpay, S. P.; Rossetti Jr., G. A. // Journal of Materials Science;Oct2009, Vol. 44 Issue 19, p5263 

    The electrothermal properties of the perovskite oxides barium titanate (BTO), lead titanate (PTO), and strontium titanate (STO) are computed near the temperatures of their ferroelectric and/or ferroelastic phase transitions. The computations are performed using a modified 2-4-6...

  • Pyrochlore to perovskite phase transformation in sol-gel derived lead-zirconate-titanate thin films. Chi Kong Kwok; Desu, Seshu B. // Applied Physics Letters;3/23/1992, Vol. 60 Issue 12, p1430 

    Investigates the pyrochlore to perovskite phase transformation in sol-gel derived lead-zirconate-titanate thin films. Use of x-ray diffraction and transmission-electron microscopy; Comparison of the peak positions and intensities of the perovskite and pyrochlore phases; Discussion on the...

  • Temperature dependence of the conductance and capacitance of langmuir films of liquid crystals. Levshin, N.; Forsh, P.; Khlybov, S.; Yudin, S. // Physics of the Solid State;Mar2013, Vol. 55 Issue 3, p608 

    Langmuir films of various thicknesses, fabricated based on liquid crystals, have been studied. Previously, a structural phase transition at a temperature of ∼75°C was detected for these films. To determine the nature of this transition, the temperature dependences of the capacitance and...

  • Structural Phase Transitions in Heteroepitaxial Ferroelectric Films. Zakharchenko, I. N.; Timonin, P. N.; Sviridov, E. V.; Aleshin, V. A. // Crystallography Reports;Mar2002, Vol. 47 Issue 2, p287 

    The changes in the structural-deformational characteristics occurring during the phase transitions in the crystal lattice of epitaxially grown thin (Ba, Sr)TiO[sub 3] films on the (001) cleavage of MgO crystals have been studied. It is shown that microdeformations along the surface normal of the...

  • Role of defect distributions and mobility on ferroelectric phase transformations in lead.... Qi Tan; Xu, Z.; Jie-Fang Li; Viehland, Dwight // Applied Physics Letters;8/25/1997, Vol. 71 Issue 8, p1062 

    Examines the role of defect distributions and mobility on ferroelectric phase transformations in lead zirconate titanate films. Comparison between defects from temperatures above ferroelectric phase transformation and defects remaining mobile; Characterization of the normal ferroelectric state;...

  • Platinum-assisted phase transition in bismuth-based layer-structured ferroelectric CaBi[sub 4]Ti[sub 4]O[sub 15] thin films. Kato, Kazumi; Suzuki, Kazuyuki; Fu, Desheng; Nishizawa, Kaori; Miki, Takeshi // Applied Physics Letters;10/21/2002, Vol. 81 Issue 17, p3227 

    The phase transition of nonferroelectric pyrochlore to ferroelectric perovskite in CaBi[sub 4]Ti[sub 4]O[sub 15] thin films depends on platinum bottom electrodes. Rather than the strain and crystallinity of the bottom electrode, matching of the atomic arrangement to the Ca-Bi-Ti-O thin films is...

  • Relative coherency strain and phase transformation history in epitaxial ferroelectric thin films. Foster, C. M.; Pompe, W.; Daykin, A. C.; Speck, J. S. // Journal of Applied Physics;2/1/1996, Vol. 79 Issue 3, p1405 

    Presents information on a study which examined relative coherency strain and phase transformation history in epitaxial ferroelectric thin films. Experimental procedure; Results; Discussion.

  • Effective-Hamiltonian Modeling of External Pressures in Ferroelectric Perovskites. Íñiguez, Jorge; Neaton, J. B.; Vanderbilt, D. // AIP Conference Proceedings;2002, Vol. 626 Issue 1, p56 

    The phase-transition sequence of a ferroelectric perovskite such as BaTiO[sub 3] can be simulated by computing the statistical mechanics of a first-principles derived effective Hamiltonian [Zhong, Vanderbilt and Rabe, Phys. Rev. Lett. 73, 1861 (1994)]. Within this method, the effect of an...

  • From incipient ferroelectricity in CaTiO[sub 3] to real ferroelectricity in Ca[sub 1-x]Pb[sub x]TiO[sub 3] solid solutions. Lemanov, V. V.; Sotnikov, A. V.; Smirnova, E. P.; Weihnacht, M. // Applied Physics Letters;7/29/2002, Vol. 81 Issue 5, p886 

    Dielectric spectra of ceramic samples of Ca[sub 1-x]Pb[sub x]TiO[sub 3] (0 ≤ x ≤ 0.4) solid solutions were studied at frequencies between 10 Hz and 1 MHz in a temperature range of 4.2-300 K. A ferroelectric phase transition was observed at x=0.3 with transformation to a relaxor type...

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