Abstract
We report the temperature-dependent elastic, thermal and ultrasonic properties of lead telluride (PbTe) along $$ \left $$ , $$ \left $$ , and $$ \left $$ orientations. The Born model is used to compute nonlinear second- and third-order elastic constants. Further, the higher order elastic constants have been used to compute ultrasonic velocities, ultrasonic Gruneisen parameters, thermal relaxation time, thermal conductivity, acoustic coupling constants, and ultrasonic attenuation. Additionally, some mechanical constants, e.g., Young’s modulus, bulk modulus, shear modulus, tetragonal modulus, Zener anisotropy factor, Breazeale nonlinear constants, and first-order pressure derivatives have been computed for PbTe. Born Criterion for mechanical stability is satisfied by PbTe, since the value of Pugh’s ratio (the ratio of bulk modulus and shear modulus) is less than 1.75 which shows brittle nature of PbTe. Computed results are correlated with theoretical and experimental data available in literatures.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
