We present the results of an infrared spectroscopy study of topological insulators Bi(2)Se(3), Bi(2)Te(3) and Sb(2)Te(3). Reflectance spectra of all three materials look similar, with a well defined plasma edge. However, there are some important differences. Most notably, as temperature decreases the plasma edge shifts to lower frequencies in Bi(2)Se(3), whereas in Bi(2)Te(3) and Sb(2)Te(3) it ...

We studied the anisotropy of the unoccupied electron states of three titanium dichalcogenides by means of polarized x-ray-absorption spectroscopy. The experimental spectra of TiS2, TiSe2, and TiTe2 at the Ti K edge and of TiTe2 at the Te L1 edge were compared with the results of real-space multiple-scattering calculations. The local angular momentum projections of the densities of states at the...

The views, opinions and/or findings contained in this report are those of The MITRE Corporation and should not be construed as an official Government position, policy, or decision, unless designated by other documentation. Executive Summary Many approaches commonly used to develop a Service-Oriented Environment (SOE) presume the availability of reliable, consistently available networks that pro...

The chiral magnetoelectric compound ${\mathrm{Ni}}_{3}{\mathrm{TeO}}_{6}$ is investigated through temperature-dependent synchrotron-based powder x-ray diffraction and absorption spectroscopy between 15 300 K. Our work provides direct evidence for the exchange-striction in material around concomitant onset point of collinear antiferromagnetic phases. near edge spectra photoelectron show that sam...

Poultry meat is a susceptible product for growth of spoilage and pathogenic microorganisms. The shelf life extension of raw poultry meat is a challenge in food industry. In this research, the combined effect of dipping in a carboxymethyl cellulose (CMC) solution containing black pepper seed (Piper Nigrum) extract (BPE) and turmeric (Curcuma Longa L.) extract (TE) (2% ...

Improved recovery of the spatial variability in the effective elastic thickness, Te, of the lithosphere is important to interpret Earth’s structure and geodynamics. Here we use synthetic topography and gravity data to systematically compare the recovery of Te using the multitaper windowing scheme of Pérez-Gussinyé et al. (2004, 2007) with the wavelet approach of Kirby and Swain (2008a). We find...

Let G=(V(G),E(G)) be a connected simple undirected graph with non empty vertex set V(G) and edge set E(G). For a positive integer k, by an edge irregular total k-labeling we mean a function f : V(G)UE(G) --> {1,2,...,k} such that for each two edges ab and cd, it follows that f(a)+f(ab)+f(b) is different from f(c)+f(cd)+f(d), i.e. every two edges have distinct weights. The minimum k for which G ...

Various graph labelings that generalize the idea of a magic square have been discussed. In particular a magic labeling on a graph with v vertices and e edges will be defined as a one-to-one map taking the vertices and edges onto the integers 1, 2, ... , v+e with the property that the sum of the label on an edge and the labels of its endpoints is constant independent of the choice of edge. Prope...

The Plasma resistivity has been measured in the edge plasma of IR-T1 tokamak. To achive the edge plasma properties ( Te and ne ) using I-V characteristics of movable single langmuir probe. Density and temperature of electron, respectively ne and Te, are measured simultaneously for calculating the radial profile of parallel and vertical resistivity. As temperature of plasma raised, resistivity d...

Sulfur, selenium, and tellurium were loaded into sub-mm size ZSM-5 single crystals and the optical properties have been comparatively studied. S and Te show similar features, while Se is unique. S and Te have optical absorption edges at wavelengths of ~400 nm with transmission dips at ~450 nm, while Se has the edge at ~550 nm. The three materials provide photoluminescence at visible wavelengths...