Abstract
The piezoelectric constants, the electromechanical coupling factors and the elastic compliance constants of Se-Te alloys are studied by the transmission circuit method and/or the mechanical resonance method. The piezoelectric constants d11 and d14 decrease rapidly when the Te concentration increases within the range of 0∼25 at.% and then increase with the Te concentration up to 80 at.%. The values of d11 and d14 are 2.76·10-6 and 1.95·10-6 C.G.S. for pure Se and 3.1·10-6 (±10%) and 1.9·10-6 (±15%) C.G.S. for the alloy of 80 at.%, respectively. A similar tendency is observed in the electro mechanical coupling factors k11 and k14, which are 0.250 and 0.156 for pure Se and 0.25 (±10%) and 0.17 (±15%) for the alloy of 80 at.%, respectively. All elastic compliance constants do not change linearly with the Te concentration within the range of 0∼30 at.%, but at higher Te concentration they change almost linearly with the concentration.
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.
