Universal Journal of Physics and Application Vol. 8(1), pp. 1 - 6
DOI: 10.13189/ujpa.2014.020101
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Ultrasonic Properties of Plutonium Monochalcogenides


Devraj Singh 1, Vyoma Bhalla 1,*, Sudhanshu Tripathi 2, Vinod Kumar Singh 3, A.K.Gupta 4
1 Department of Applied Physics, Amity School of Engineering and Technology, Bijwasan, New Delhi-110061, India
2 Department of Instrumentation & Control Engineering, Amity School of Engineering and Technology, New Delhi-110061, India
3 Department of Physics, V.S.S.D. College, Kanpur-208002, India
4 Academic Department, National Institute of Open Schooling, NOIDA-201309, India

ABSTRACT

A computer program in MATLAB is developed for the numerical computation of ultrasonic properties in Pu- monochalcogenides in present investigation in the temperature range 100-300K along <100>, <110> and 111> directions. The program calculates the second and third order elastic constants, relaxation time, ultrasonic coupling constants and ultrasonic attenuation by considering the interaction of sound wave with complete spectrum of thermal phonon modes and by taking two basic parameters i.e., nearest neighbour distance and hardness parameters. The program has been successful for the study of (i) temperature dependence of the second and third order elastic constants, (ii) temperature and crystallographic dependence of ultrasonic velocities for longitudinal and shear waves with thermal relaxation time, ultrasonic coupling constants and ultrasonic attenuation for PuS, PuSe and PuTe. The behaviour of acoustic parameters as a function of higher temperature has been discussed in correlation with other thermophysical parameters.

KEYWORDS
Plutonium Monochalcogenides, Elastic Properties, Ultrasonic Properties

Cite this paper
Devraj Singh , Vyoma Bhalla , Sudhanshu Tripathi , Vinod Kumar Singh , A.K.Gupta . "Ultrasonic Properties of Plutonium Monochalcogenides." Universal Journal of Physics and Application 8.1 (2014) 1 - 6. doi: 10.13189/ujpa.2014.020101.