Showing papers in "Solid State Communications in 2006"

TL;DR: In this article, substitutions of La or Pr ions on Ba ion basis sites were successfully prepared by a citrate combustion process, and the sintered bodies were structurally and magnetically studied by powder X-ray diffraction and vibrating sample magnetometry.

TL;DR: The optical absorption edge of brookite TiO2 was measured at room temperature, using natural crystals as mentioned in this paper, and the observed absorption edge is broad and extends throughout the visible, quite different from the steep edges of rutile and anatase.

TL;DR: In this article, the average size of the particles as determined by X-ray diffraction increases with the annealing temperature from 18 to 52 nm, with the increase in particle size, magnetization decreases while the magnetization blocking temperature increases.

TL;DR: In this article, six types of BiFeO3 ceramic samples, with subtle differences in synthesis conditions, were prepared, and the comparison of their phases, electrical resistivity, and porosity revealed that the use of Bi2O3 and Fe 2O3 powders of <1-μm size and a rapid liquid-phase sintering process of 855-°C for 5-min at 100 °C/s is beneficial to synthesize poreless single-phase BixFeyO3 samples with high electrical resistivities of ∼5×101

TL;DR: In this paper, single-crystalline SnO2 nanowires with sizes of 4-14nm in diameter and 100-500nm in length were produced in a molten salt approach by using hydrothermal synthesized precursor.

TL;DR: In this paper, a general compliance transformation relation is given for hexagonal crystals and useful expressions of the Young's modulus, Poisson's ratio υ ( h k l ) and X-ray elastic constants (XREC) are also given in terms of the Miller indices of the lattice plane in the crystal axes ( X, Y, Z ) used commonly.

TL;DR: In this article, Ni-doped ZnO particles were synthesized by rheological phase reaction-precursor method and the thermal decomposition of oxalate precursors was studied by thermogravimetry and differential thermal analysis in air atmosphere.

TL;DR: In this paper, a self-propagating room temperature synthesis was used to synthesize ultrafine Ce 1− x Nd x O 2− δ (x = 0-0.25) powders.

TL;DR: In this article, the size-dependent Debye temperatures of nanocrystals are modeled without any adjustable parameter by considering both Lindemann's criterion and Mott's equation, which lead to related applications on size effects of the Einstein temperature and the volume thermal expansion coefficient.

TL;DR: In this paper, the propagation of electromagnetic waves in one-dimensional plasma dielectric photonic crystals, the superlattice structure consisting of alternating plasma and dielectrics materials, was studied theoretically using transfer matrix method.

TL;DR: In this paper, the giant dielectric constant with the maximum of 53,120 was obtained in CaCu 3 Ti 4 O 12 ceramics at room temperature and 10 kHz.

TL;DR: In this paper, a unified band structure model is proposed to explain the magnetic ordering in Mn-doped semiconductors, based on the p-d and d-d level repulsions between the Mn ions and host elements.

TL;DR: In this article, NiO nanoparticles were synthesized via thermal decomposition of nickel dimethylglyoximate precursor and the structure, morphology and properties of the products were characterized by XRD, TEM, SAED and UV-vis spectrophotometry.

TL;DR: In this article, the authors review the phenomenon of colloidal particles at interfaces between immiscible liquids, such as on the surfaces of droplets, and report substantial progress on topics including the energetics of adsorption, the interactions among adsorbed particles, and the modulus of concentrated layers.

TL;DR: In this article, Wang et al. employed ZnOnanorods coated with Pd to detect H 2 down to 10 ppm, with arelative response of2.6% at10 ppm and arecovery time of 20 s at 25 8C.

TL;DR: In this article, the distribution of Mg 2+ in tetrahedral (A) and octahedral (B) sites of the spinel was analyzed by X-ray photoelectron spectroscopy.

TL;DR: In this article, Bismuth-borate glasses doped with rare earth ions were studied with respect to the density, molar volume and the elastic moduli, Poisson's ratio, Debye temperature, microhardness, softening temperature, acoustic impedance, diffusion constant and latent heat of melting.

TL;DR: In this article, the effect of nanometer Al2O3 particle addition on the crystal structure and superconducting properties of Y Ba2Cu3Oy (YBCO) ceramics was systematically studied.

TL;DR: In this article, the phase diagram of the binary osmium-boron system was examined and two hexagonal phases, OsB1.1, Os2B3, and an orthorhombic phase was confirmed.

TL;DR: In this article, electron-phonon interaction effects on linear and nonlinear optical absorption in cylindrical quantum wires are investigated, and the results show that electron interaction not only influences the relaxation rate but also distinctly influences the wave functions and energies of the electron.

TL;DR: In this article, the effect of various alkaline-earth metal oxides on the broadband infrared luminescence covering 1000-1600 nm wavelength region from bismuth-doped silicate glasses was reported.

TL;DR: In this article, the synthesis, micro-structure, magneto-transport and magnetization of polycrystalline La2/3Ca1/3MnO3:Agx composites with x = 0.0, 0.1, 0.3 and 0.4 were reported.

TL;DR: In this article, high resolution synchrotron radiation (SR) diffraction does not show any sign of charge ordering nor any crystal symmetry breaking in BiFeO3 at temperatures from 5 K up to 1000 K.

TL;DR: In this article, infrared to visible upconversion in erbium doped lead lanthanum zirconate titanate (PLZT) transparent ceramic is reported for the first time.

TL;DR: In this paper, temperature and frequency dependence of the real and imaginary parts of the dielectric permitivity of cubic Ba(Ti0.7Hf0.3)O3 ceramic has been studied in the temperature range of 100 k to 350 k at the frequencies 0.1 k, 1 k, 10 k, 100 k. Diffuse phase transition and frequency dispersion is observed in the permittivity-vs-temperature plots.

TL;DR: In this paper, the authors used an ideal equivalent circuit to explain electrical responses in impedance formalism, and a Debye-like relaxation in the permittivity formalism was also found.

TL;DR: In this paper, the authors discuss how colloidal particles organize when they are confined by emulsion droplets and discuss the preparation, properties, and structure of these systems, using relevant results from geometry to describe how the particles organize.

TL;DR: In this article, the model of aligned molecular dipole layers in the contact region of coated nanoparticles is studied through Monte Carlo simulations, and the authors propose electrowetting between the particles and the suspending liquid to induce the aligned state.

TL;DR: In this article, the authors showed that Mn2CoSb is a true half-metallic ferromagnet characterized by an indirect Gamma-X band gap of about 0.4007 eV around the Fermi level for minority-spin electrons.

TL;DR: In this paper, the dielectric, piezoelectric and electromechanical properties of manganese modified CaBi4Ti4O15 (CBT) bismuth layer-structured ferroelectric ceramics were determined in the range of room temperature to ∼800 ǫC.