Anomalies in Young's modulus behavior after annealing in polycrystalline SmS  

作　　者：V.V.Kaminskii N.V.Sharenkova G.A.Kamenskaya M.A.Grevtsev Yu.V.Lyubimova 

机构地区：[1]ITMO University,Saint Petersburg 197101,Russia [2]Ioffe Physical Technical Institute,Russian Academy of Sciences,Saint Petersburg 194021,Russia

出　　处：《Journal of Semiconductors》2021年第3期50-53,共4页半导体学报（英文版）

基　　金：This research was supported by Russian Science Foundation under Grant 19-72-30004.

摘　　要：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.

关 键 词：SMS ultrasonic spectroscopy Young's modulus annealing in polycrystals Bordoni relaxations attenuation decrement 

分 类 号：TN304[电子电信—物理电子学] TN752