Composite structure and size effect of barium titanate nanoparticles

Hoshina, Takuya; Wada, Satoshi; Kuroiwa, Yoshihiro; Tsurumi, Takaaki
November 2008
Applied Physics Letters;11/10/2008, Vol. 93 Issue 19, p192914
Academic Journal
Nanostructures of barium titanate (BaTiO3) nanoparticles were analyzed using a composite structure model. It was found that BaTiO3 nanoparticles had a composite structure consisting of (i) inner tetragonal core, (ii) gradient lattice strain layer (GLSL), and (iii) surface cubic layer. The crystal structure of each region did not depend on particle size while the volume fraction of the GLSL and the surface cubic layer increased with decreasing the particle size. These results suggested that the size effect of BaTiO3 nanoparticles originated from the composite structure.


Related Articles

  • Structural phase transformation of nickel nanostructures with synthetic approach conditions. Behera, B. C.; Ravindra, A. V.; Padhan, P. // Journal of Applied Physics;2014, Vol. 115 Issue 17, p17B510-1 

    Dispersed nanostructures of nickel (Ni) have been synthesized by thermal decomposition of nickeloleate in the presence of 1-octadecene with controlled synthesis temperature. The evolution of face-centered-cubic (fcc) phase with increasing synthesis temperature from 320 to 365 °C leads to...

  • What is a Suitable Dissolution Method for Drug Nanoparticles? David Cutler; Hak-Kim Chan; Jimmy Yun; Judy Raper // Pharmaceutical Research;Jul2008, Vol. 25 Issue 7, p1696 

    Abstract Purpose  Many existing and new drugs fail to be fully utilized because of their limited bioavailability due to poor solubility in aqueous media. Given the emerging importance of using nanoparticles as a promising way to enhance the dissolution rate of these drugs, a method must be...

  • On phase transitions in Bose gases at constant density and constant pressure. Ivanov, Velin G.; Uzunov, Dimo I. // AIP Conference Proceedings;2004, Vol. 731 Issue 1, p295 

    The phase transitions in Bose gases at constant volume and constant pressure are considered. New results for the chemical potential, the effective Landau-Ginzburg free energy and the equation of state of the Bose-Einstein condensate in ideal Bose gases with a general form of the energy spectrum...

  • Nanospheres in phase-separating multicomponent fluids: A three-dimensional dissipative particle dynamics simulation. Laradji, Mohamed; Hore, Michael J. A. // Journal of Chemical Physics;Dec2004, Vol. 121 Issue 21, p10641 

    The dynamics of phase separation of three-dimensional fluids containing nanospheres, which interact preferentially with one of the two fluids, is studied by means of large-scale dissipative particle dynamics simulations. We systematically investigated the effect of volume fraction, radius, and...

  • Phase separations in mixtures of a liquid crystal and a nanocolloidal particle. Matsuyama, Akihiko // Journal of Chemical Physics;11/28/2009, Vol. 131 Issue 20, p204904 

    We present a mean field theory to describe phase separations in mixtures of a liquid crystal and a nanocolloidal particle. By taking into account a nematic, a smectic A ordering of the liquid crystal, and a crystalline ordering of the nanoparticle, we calculate the phase diagrams on the...

  • Intense multimicrojoule high-order harmonics generated from neutral atoms of In2O3 nanoparticles. Elouga Bom, L. B.; Ganeev, R. A.; Abdul-Hadi, J.; Vidal, F.; Ozaki, T. // Applied Physics Letters;3/16/2009, Vol. 94 Issue 11, p111108 

    We studied high-order harmonic generation from plasma that contains an abundance of indium oxide nanoparticles. We found that harmonics from nanoparticle-containing plasma are considerably more intense than from plasma produced on the In2O3 bulk target, with high-order harmonic energy ranging...

  • Laser transfer of diamond nanopowder induced by metal film blistering. Kononenko, T.; Alloncle, P.; Konov, V.; Sentis, M. // Applied Physics A: Materials Science & Processing;Mar2009, Vol. 94 Issue 3, p531 

    Blister-based laser induced forward transfer (BB-LIFT) is a promising technique to produce surface microstructures of various advanced materials including inorganic and organic micro/nanopowders, suspensions and biological micro-objects embedded in life sustaining medium. The transferred...

  • Characterization of the nanocryosurgical freezing process through modifying Mazur’s model. Jing-Fu Yan; Jing Liu // Journal of Applied Physics;Apr2008, Vol. 103 Issue 8, p084311 

    Nanoparticles enhanced freezing, termed as nanocryosurgery, is a newly emerging cryosurgical technique which has potential advantage in targeted tumor treatment. However, there are currently no models available to predict the effects of nanoparticles on cell-level biophysical events during...

  • Theoretical estimation of the microhardness of particulate-filled polymer nanocomposites. Afashagova, Z.; Kozlov, G.; Burya, A.; Zaikov, G. // Theoretical Foundations of Chemical Engineering;Nov2007, Vol. 41 Issue 6, p896 

    It is shown that the theoretical models developed to estimate the microhardness of homogeneous solids cannot adequately describe this characteristic for particulate-filled polymer nanocomposites. This description can be accomplished in terms of the model proposed for heterophase materials, which...


Read the Article


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

Try another library?
Sign out of this library

Other Topics