Showing papers in "Solid State Communications in 2014"

TL;DR: In this paper, a first principles study of the electronic and optical properties of the graphene-like Ti n +1 X n (n = 1,2; X = N,C) has been done in the framework of the Density Functional Theory (DFT) to obtain associated quantities as the dielectric function, energy-loss function, reflectivity and absorption spectra.

TL;DR: In this article, structural, magnetic and ferroelectric properties of Ni doped barium titanate were investigated using solid state sintering technique and it was revealed from structural studies that the phase transformation from tetragonal to hexagonal phase is strongly influenced by Ni doping concentration.

TL;DR: In this article, the effect of the substrate on the lattice dynamics in molybdenum disulfide was investigated and the experimental results were discussed within the frames of the recently proposed model of electron-phonon coupling involving transverse acoustic phonons.

TL;DR: F-substituted ROBiS2 (R=La, Ce, Nd) superconducting single crystals with different F concentrations were grown successfully using a CsCl/KCl flux as discussed by the authors.

TL;DR: In this article, the phase diagrams and compensation behaviors of a mixed spin (1/2-1) hexagonal Ising nanowire with core-shell structure are studied by using the effective field theory with correlations.

TL;DR: In this article, the spin-helical current in 3D topological insulators was observed to be spin-polarized in a characteristic in-plane direction perpendicular to the current, and the spinpolarization would reverse when the current direction reverses.

TL;DR: In this paper, high quality Sb2Te3 microcrystals have been grown by the physical vapor transport (PVT) method without using a foreign transport agent, and the phase composition of the grown crystals has been identified by the X-ray single crystal structure analysis in space group R−3m, a=4.2706(1), b=30.4758(8) ǫ, Z=3 (R=0.0286), Z = 3 (R = 0.

TL;DR: In this paper, the relativistic energy and magnetic anisotropy from the quantum mechanical perturbation theory (PT) were compared with direct density functional calculations in FePt and CoPt magnetics.

TL;DR: In this paper, the frequency and temperature dependent dielectric properties of hafnium (Hf) incorporated cobalt ferrite (CoF2−xHfxO4) were investigated.

TL;DR: In this article, the crystal structure and optical properties of GaIn 2 O 3 films have been systematically investigated by means of Energy Dispersive Spectroscopy (EDS), X-ray diffraction and spectrophotometer.

TL;DR: In this article, the Raman spectra of spinel and nonspinel models for γ-Al 2 O 3 were calculated by using a first principles method and an assignment on the basis of the proposed symmetry was established.

TL;DR: In this paper, the authors used Banerjee's criteria, modified Arrott plots, and the scaling hypothesis to analyze magnetic-field dependences of magnetization near the ferromagnetic-paramagnetic (FM-PM) phase-transition temperature (TC) of perovskite-type manganites La0.7Ca0.3Mn1−xNixO3 (x=0.09, 0.12 and 0.15).

TL;DR: In this paper, a correlation between crystal structure and superconducting properties of the BiS2-based superconductor LaO0.5F 0.5BiS2 was investigated and it was found that high-pressure annealing generated uniaxial strain along the c axis.

TL;DR: In this article, the effects of Hamiltonian parameters on hysteresis behaviors are discussed in detail and the Q-, R-, P-, S- and L-type compensation behaviors in the system are also obtained.

TL;DR: In this paper, the authors studied the radiative linewidth of light-hole exciton resonance in shallow In x Ga 1 − x As / GaAs single quantum wells as a function of indium concentration in the range x = 0.02 … 0.10 and well thickness L Z = 1 … 30 nm using method of Brewster reflection spectroscopy.

TL;DR: In this paper, the electrical resistivity in the abplane of the Y1−yPryВа2Сu3О7−δ single crystals with high degree of perfection in the interval of Тc − 300 K was investigated, and the concentration dependence of the critical temperature testifies the d-pairing of the BCS model.

TL;DR: In this article, the effect of light intensity on the solar efficiency of a TiO2 dye-sensitized solar cell was investigated and it was observed that the efficiency of the DSSC increases with increasing the light intensity e.g. from 0.013 ± 0.002% to 0.150± 0.020% by increase in light intensity.

TL;DR: In this paper, the magneto-transport behavior of electrons confined at the conducting LaAlO 3 /SrTiO 3 interface in the low sheet carrier density regime was examined.

TL;DR: In this paper, a detailed magnetic, dielectric and Raman studies on partially disordered and biphasic double perovskite La2NiMnO6 were performed.

TL;DR: In this paper, two relaxations were observed in the spectra of electric modulus, one occurs in the orthorhombic phase, which was ascribed to the oxygen-vacancy clusters.

TL;DR: In this paper, the Blume-Capel model was applied to a cylindrical Ising nanotube by using the effective field theory with correlations, and the effect of temperature has been examined on hysteresis loops and dependencies of coercivity based on temperature.

TL;DR: In this article, a symmetric carbon/carbon supercapacitor is studied in a Na2SO4 aqueous electrolyte, and the discharge capacitance is 92 F g � 1, when the symmetric cell is cycled between the potential ranges from 0 to 1.6 V.

TL;DR: In this paper, Monte Carlo simulation has been used to study the magnetic properties and hysteresis loops of a Blume-Capel nanowire, consisting of a ferromagnetic core of spin-1 atoms surrounded by a magnetically-coupled shell.

TL;DR: In this article, the effect of dopant on the band gap of pure ZnO nano-plates was analyzed in detail and the dielectric analyses of the obtained samples were done in a wide frequency range and electronic properties of the pure and doped samples were analyzed using various theoretical models.

TL;DR: In this paper, the low-field magnetic response of the non-centrosymmetric superconductor YPtBi (T c = 0.77 K ) is investigated.

TL;DR: In this paper, W-doped monoclinic vanadium dioxide VO2(M) nanobelts have been transformed from VO2B nanobels in the presence of tungstic acid by a facile one-step hydrothermal route for the first time.

TL;DR: In this paper, the spin-phonon coupling strength is observed to decrease with decreasing ionic radii of the rare-earth ion and the antistreching B g mode appearing at ~500 cm −1 is stronger in comparison to the stretching A g mode at ~650cm −1, while the valance state of the Mn and the Co ions below and above the magnetic ordering temperature is found to be invariant due to the magnetic order.

TL;DR: In this article, the bulk magnetization, electron-spin-resonance spectra and transport properties of Y2Ir2O7 were reported and the behavior of spin dynamics confirmed that antiferromagnetic ordering with all-in/all-out structure is responsible for the existence of ferromagnetic component.

TL;DR: In this paper, the authors studied the mechanical properties of hydrogen functionalized graphene under shear deformation and found that the properties of graphene greatly depend on the coverage percent of hydrogen atoms.

TL;DR: In this paper, the authors performed broadband spin-wave spectroscopy on a magnetostrictive CoFeB alloy grown on a ferroelectric BaTiO3 substrate causing elastic strain with a quasi-periodic modulation.