Thermoelectric, spin-dependent optical and quantum transport properties of 2D half-metallic CoSe.

In this paper, the thermoelectric, spin-dependent optical and quantum transport properties of a two-dimensional (2D) CoSe monolayer are investigated using first principles calculations. The stability of the CoSe monolayer is confirmed by energy-cohesive calculations and phonon dispersion analysis. According to electronic and magnetic calculations, CoSe is a Dirac half-metal (DHM) with several Dirac cones around the Fermi level in the spin-down channel and exhibits intrinsic ferromagnetism with a high Curie temperature.

Influence of population and radius of cavity bubbles on size of sodium chloride crystals in ultrasound ablation.

Crystal size distribution as a function of power in ultrasound ablation is simulated by using a theoretical method based on population and radius of bubbles. In this method, population and radius of bubbles are related to ultrasound power and Debye temperature of crystals. The best power for production of crystals with uniform size is obtained from the theory.