Showing papers in "Solid State Communications in 2005"

TL;DR: In this paper, the temperature dependence of emission spectra of alkaline earth ortho -silicates M 2 SiO 4 (M=Ca, Sr, Ba) doped with Eu 2+ ions is investigated.

TL;DR: In this article, the growth mechanism of BN nanotubes has been clarified to be a catalytic growth and morphology and microstructure were investigated by scanning electron microscopy and transmission electron microscope.

TL;DR: In this article, the formation of titanium oxide nanotube arrays on titanium substrates was investigated in HF electrolytes under optimized electrolyte and oxidation conditions, well-ordered nanotubes of titania were fabricated.

TL;DR: In this article, Nb-doped BiFeO3 polycrystalline ceramics were synthesized by a solid-state reaction and their dielectric and magnetic properties were investigated.

TL;DR: In this paper, the luminescent properties of alkaline earth orthosilicates M2SiO4 (M=Ba, Sr, Ca) doped with Eu2+ ions are investigated.

TL;DR: In this article, the bandgap of ZnO doped with Mn 2+, Co 2+ and Ni 2+ has been measured using EBS and the variation of bandgap with dopant concentration has been examined.

TL;DR: In this paper, complex impedance spectra were obtained on a crystal of CaCu3Ti4O12 (CCTO) from 289 to 456 K. As in the case of ceramic CCTO, these spectra can be interpreted as arising from a conducting material containing insulating barriers.

TL;DR: In this paper, the authors investigated the dielectric properties of (1− x )Na 0.5 Bi 0.6 -BaTiO 3 in the composition range 0.00 to 0.10.

TL;DR: In this article, the electronic structure and the ferromagnetism of CrS and UP in the zinc-blende (ZB) phase are investigated by spin-polarized calculations with first-principles plane-wave pseudopotential method within the generalized gradient approximation for the exchange-correlation potential.

TL;DR: In this paper, a uniform BC3 honeycomb sheet with high crystalline quality over the entire macroscopic area of the NbB2 (0001) surface by carbon-substituted technique in a boron honeycomb was successfully grown.

TL;DR: ZnO nanowires and nanotubes have been rationally fabricated within the nanochannels of porous anodic alumina templates by an improved sol-gel template process as mentioned in this paper.

TL;DR: In this paper, a high-pressure, high-temperature synthesis of platinum carbide was performed in a laser-heated diamond anvil cell and data were collected using the synchrotron X-ray diffraction method at pressures >75 GPa at high temperature.

TL;DR: The Ba3MgSi2O8:mEu2+, Mn2+ phosphors show three emission colors: blue band of 440 nm, green band of 505 nm and red band of 620 nm as mentioned in this paper.

TL;DR: In this paper, the optical rectification in a semiparabolic quantum well is theoretically investigated and the nonlinearity resulting from the asymmetry of the confining potential is studied in the lowest order.

TL;DR: In this paper, the effects of electron-phonon interactions on the dielectric function spectra are investigated in detail by measuring the temperature dependence of energy gaps or critical points (van Hove singularities) of the optical spectra.

TL;DR: In this paper, the Pb(FexTi1−x)O3 system exhibits ferroelectric and ferromagnetic ordering at room temperature and demonstrates a coupling between the two order parameters.

TL;DR: In this article, the authors studied the electronic structure of Zn0.86Ni0.14O by valence-band photoemission spectroscopy and found a structure at similar to 2 eV below the Fermi energy E-F, which is of Ni 3d origin.

TL;DR: In this paper, a novel method for synthesis of titanium oxide (TiO 2 ) nanotubes by microwave irradiation was investigated, and the results showed that the titania nano-tubes had the central hollow, open ended and multi-wall structure.

TL;DR: In this paper, it was found that temperature, concentration of cationic surfactant cetyltrimethylammonium bromide (CTAB), and the addition order of reactants are the three critical factors for the assembly of nanobelts in the current process.

TL;DR: In this paper, the ac electrical properties of 5-10% Fe doped polycrystalline sample have been investigated by complex impedance analysis over the frequency and temperature ranges of 1-100 kHz and 77-300 K, respectively.

TL;DR: In this article, it was shown that for the cuprates La2−xRExCuO4+y, which form the T′-parent compounds of the La-based electron doped cuprates, they can be synthesized by molecular beam epitaxy in the T-structure.

TL;DR: In this article, the transverse (TO) and longitudinal (LO) optical phonons in AlAs, GaP, GaAs, InP, InAs and InSb have been measured at room temperature by infrared spectroscopy using an oblique incidence reflectance method.

TL;DR: In this paper, a large, room temperature magnetoresistance (MR) effect in tris-(8-hydroxyquinoline) aluminum sandwich devices was studied and the effect reached almost 10% at fields of 10mT at room temperature.

TL;DR: In this paper, high quality vertical-aligned ZnO nanorod arrays were synthesized by a simple vapor transport process on Si (111) substrate at a low temperature of 520°C.

TL;DR: In this paper, a two-stage non-isothermal precipitation was used to obtain needle-like mixtures of Ce3+−Ce4+ compounds, and the subsequent aging temperature played an important role on the shape and size of final products.

TL;DR: The elastic properties of TaC have been investigated experimentally and by model calculations as discussed by the authors, and the elastic stiffness coefficients were determined on a (100)-oriented disc-shaped monocrystal at room temperature using a plane-wave ultrasound method.

TL;DR: A theoretical study of cubic BaTiO3 and BaZrO3 perovskites is presented, using the full-potential linear augmented plane wave (FP-LAPW) method as implemented in the WIEN2K code.

TL;DR: In this paper, the magnetoelectric properties of a rhombohedrally distorted perovskite BiFe0.7Mn0.3O3 were investigated and an anomaly in the dielectric constant was induced near room temperature by the substitution of Mn for Fe in BiFeO3.

TL;DR: In this article, the capacitance and current voltage characteristics of the Ti/p-Si Schottky barrier diodes have been investigated taking into account the effect of the interface states and series resistance of the device.

TL;DR: In this article, the emission spectrum of Ca 1− x F 2+ x :Eu x nanoparticles consisted of a few narrow, sharp lines corresponding to Eu 3+ ions.