In this paper, the dependencies of Young's modulus and attenuation decrement on samarium sulfide polycrystals (SmS) under various annealing temperatures are studied by the piezoelectric ultrasonic composite oscillator technique at a frequency of 100 kHz in the temperature range of 80–300 K. A decrease in Young's modulus with an increase of the annealing temperature due to the texturing of the material was revealed. At the same time, attenuation peaks were observed at temperatures about 90 and 125 K, presumably due to Niblett-Wilks and Bordoni relaxations.

中文翻译：

---

多晶 SmS 退火后杨氏模量行为异常

本文采用压电超声复合振荡器技术，频率为 100 kHz，温度范围为 80-300 K，研究了不同退火温度下硫化钐多晶 (SmS) 的杨氏模量和衰减衰减量的相关性。揭示了由于材料的织构导致的随着退火温度的升高，杨氏模量的变化。同时，在大约 90 和 125 K 的温度下观察到衰减峰，可能是由于 Niblett-Wilks 和 Bordoni 弛豫。