Elastic, thermophysical and ultrasonic investigation of tin monochalcogenides

IF 1.8 4区物理与天体物理 Q3 PHYSICS, APPLIED Modern Physics Letters B Pub Date : 2024-03-22 DOI:10.1142/s0217984924502804

Anurag Singh, Sudhanshu Tripathi, Devraj Singh

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Abstract

This work explores the investigation of tin monochalcogenides i.e. SnX (X: S, Se, Te) at room temperature (300K). The mechanical, thermophysical and ultrasonic properties of SnX (X: S, Se, Te) have been evaluated using the computed values of second- and third-order elastic constants (SOECs and TOECs). The SOECs and TOECs have been obtained using Born–Mayer potential model at 0K and 300K. The brittleness behavior of tin monochalcogenides is detected by Pugh’s ratio. It is observed that phonon–phonon interaction mechanism is dominant in tin monochalcogenides leading to high ultrasonic attenuation. The obtained temperature dependence behavior of tin monochalcogenides is validated via comparison with available works of literature data in previous works done experimentally as well as theoretically by others.

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单质锡的弹性、热物理和超声波研究

这项研究探讨了室温（300K）下锡单质（即 SnX（X：S、Se、Te））的研究。利用二阶和三阶弹性常数（SOECs 和 TOECs）的计算值评估了 SnX（X：S、Se、Te）的机械、热物理和超声特性。二阶弹性常数和三阶弹性常数是在 0K 和 300K 温度下利用玻恩-迈尔电势模型计算得出的。单质锡的脆性行为是通过普氏比来检测的。据观察，声子-声子相互作用机制在单质锡中占主导地位，从而导致高超声衰减。通过与他人以前的实验和理论研究中的文献数据进行比较，验证了所获得的单质锡的温度依赖性行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Modern Physics Letters B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

10.50%

发文量

235

审稿时长

5.9 months

期刊介绍： MPLB opens a channel for the fast circulation of important and useful research findings in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low-dimensional materials. The journal also contains a Brief Reviews section with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.