TITLE:
Elastic Moduli in Cadmium Selenide Doped with Chromium
AUTHORS:
N. S. Averkiev, I. B. Bersuker, V. V. Gudkov, I. V. Zhevstovskikh, M. N. Sarychev, S. Zherlitsyn, Sh. Yasin, Yu. V. Korostelin
KEYWORDS:
Piezo-Electric Crystal, Ultrasound, Elastic Moduli, Jahn-Teller Effect, Relaxation
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.5 No.1,
January
4,
2017
ABSTRACT:
Temperature dependence of elastic moduli , , and the latter for the piezo-active and non-piezo-active versions, have been measured in the interval of 4 - 180 K at 28 - 262 MHz in a CdSe: Cr2+ crystal. Anomalies below 40 K have been found for all the moduli, except . The interpretation of the results has been carried out involving the Jahn-Teller effect and relaxation between the equivalent distortions of the tetrahedral CrSe4 centers.