Manipulating electronic and magnetic properties of two-dimensional (2D) transitional-metal dichalcogenides (TMDs) MX2 by doping has raised a lot of attention recently. By performing the first-principles calculations, we have investigated the structural, electronic, and magnetic properties of transitional metal (TM)-doped MoS2 at low and high impurity concentrations. Our calculation result indic...

Using an asymptotic solution of the M -impurity thermodynamics of a dilute s-d system, the impurity energy and impurity heat capacity ∆C(T ) are derived for dilute magnetic alloys with spin 1/2 and spin 3/2 impurities. The parameters which enter ∆C are adjusted to fit experimental data on impurity heat capacity of CuCr and (La1−xCex) Al2. Agreement is satisfactory for CuCr, at temperatures belo...

Redistributions of implanted species after thermal annealing in polycrystalline silicon (poly-silicon) were studied by secondary ion mass spectrometry. Ten different elements were implanted into poly-silicon films grown on Si substrates. The implanted energies were chosen such that the expected ion range is within the poly-silicon film. Thermal anneals were carried out at temperatures between 3...

Light emitting diodes (LEDs) are widely used nowadays. They are used in major parts of our life. But it is still necessary to improve their characteristics. In this paper the impurity and Indium atoms influence on the LEDs characteristics is investigated by computer simulation. Simulation was carried out in Sim Windows. The program was improved for this purpose by creating new files for AlGaInN...

If light beam propagates through matter containing point impurity centers, the amount of energy absorbed by the media is expected to be either independent of the impurity concentration N or proportional to N, corresponding to the intrinsic absorption or impurity absorption, respectively. Comparative studies of the resonant transmission of light in the vicinity of exciton resonances measured for...

background: salt content and ph degree are the quality indicators of bread which their unauthorized levels may have harmful effects on body health. accordingly, this survey was carried out to evaluate ph and salt contents in bread samples produced in mashhad, iran. methods: totally 708 bread samples (340 loaves of lavash, 183 loaves of taftun, 139 loaves of barbari and 46 loaves of sangak bread...

Central toroidal rotation and impurity transport coe cients have been determined in Alcator C-Mod Ohmic High Con nement Mode (H-mode) plasmas from observations of x-ray emission following impurity injection. Rotation velocities up to 3 10 m/s in the co-current direction have been observed in the center of the best Ohmic H-mode plasmas. Purely Ohmic H-mode plasmas display many characteristics si...