SH Waves in a Half-Space Model of Functionally Gradient Piezoelectric Semiconductors with Initial Stresses

IF 1.3 4区 物理与天体物理 Q4 PHYSICS, CONDENSED MATTER Ferroelectrics Letters Section Pub Date : 2023-10-05 DOI:10.1080/07315171.2023.2238174
W. H. Wang, Li Li, M. Lan, J. H. Du
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Abstract

AbstractIn terms of piezoelectric class (6 mm) crystal semiconductor, the propagation of shear surface waves on the half-space surface under initial stresses is studied. The initial stresses and material parameters are hypothesized to exponentially vary along x− direction only. Besides, the velocity equations of SH waves can be obtained based on the boundary conditions and the kinematic equations of the initially stressed graded piezoelectric semiconductor material, as well as the traction-free boundary conditions. Based on the numerical results, we explore how the semiconductivity, initial stresses as well as material gradient index impact the dispersive curves.Keywords: Shear surface wavesgradient materialpiezoelectric semiconductorsdispersive curvesinitial stresses Disclosure StatementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe present study was funded by the Natural Science Foundation of Heilongjiang Province of China [grant number LH2020A023]; Heilongjiang Province Education Department Scientific Research Project [grant number 145209136]; National Natural Science Foundation of China, [No.42371113].
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具有初始应力的功能梯度压电半导体半空间模型中的SH波
摘要以压电类(6mm)晶体半导体为对象,研究了初始应力作用下剪切表面波在半空间表面上的传播规律。假设初始应力和材料参数仅沿x -方向呈指数变化。此外,根据初始应力梯度压电半导体材料的边界条件和运动方程,以及无牵引力边界条件,可以得到SH波的速度方程。在此基础上,探讨了半导体率、初始应力和材料梯度指数对色散曲线的影响。关键词:剪切表面波;梯度材料;压电半导体;色散曲线;本研究由黑龙江省自然科学基金资助[批准号:LH2020A023];黑龙江省教育厅科研项目[批准号145209136];国家自然科学基金项目[No.42371113]。
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来源期刊
Ferroelectrics Letters Section
Ferroelectrics Letters Section 物理-物理:凝聚态物理
CiteScore
1.10
自引率
0.00%
发文量
1
审稿时长
4.8 months
期刊介绍: Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.
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