TITLE:
Ultrasonic Wave Propagation in Californium Monopnictides
AUTHORS:
Raj Kumar, Devraj Singh, Giridhar Mishra
KEYWORDS:
Californium monopnictides, Coulomb and Born-Mayer potential, Elastic constants, Ultrasonic velocity, Grüneisen parameters
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.1 No.1,
December
30,
2011
ABSTRACT: In this paper, we have investigated the temperature dependence of the ultrasonic parameters like ultrasonic velocities and Grüneisen parameters in californium monopnictides CfY (Y: N, As and Sb) for longitudinal and shear waves along , and crystallographic directions in the temperature range 100–500K. For the same evaluation the second- and third- order elastic constants have also been computed for these monopnictides using Coulomb and Born-Mayer potential upto second nearest neighborhood. The mechanical properties and stability of CfN is best, because of its high valued elastic constants. Ultrasonic velocity is found to be highest for CfAs along all chosen directions, so CfAs will be most suitable compound for wave propagation. The obtained results of present investigation are discussed in along with identified thermophysical properties.