Investigation of the Dyakonov-Shur instability for THz plasma waves in quantum gated cylindrical FET

doi:10.1063/1.5130598

IR > 理学院

	Investigation of the Dyakonov-Shur instability for THz plasma waves in quantum gated cylindrical FET
	Li, Dongao; Zhang, Liping; Su, Junyan
	2019-12-01
发表期刊	AIP ADVANCES
卷号	9 期号:12
摘要	Plasma waves may become unstable in the channel of field effect transistors (FETs) with asymmetric boundary conditions on source and drain, which is known as Dyakonov-Shur instability. In this letter, we extend the Dyakonov-Shur instability to the quantum gated cylindrical FET and obtain the dispersion equations describing unstable terahertz (THz) plasma waves using quantum cylindrical hydrodynamic equations. Research results show that the length of the channel and the wave vector of the circumferential direction inhibit the instability increment; however, the quantum effect, the radius of the channel, and the electron temperature enhance the instability increment. The oscillation frequency increases with the increase in the quantum effect, the wave vector of the circumferential direction, and the electron temperature, but the oscillation frequency increases with the decrease in the length and radius of the channel. Compared with the one-dimensional rectangular FET, THz plasma waves in the two-dimensional cylindrical FET have a higher oscillation frequency. (C) 2019 Author(s).
关键词	Electron temperature Field effect transistors Plasma diagnostics Plasma stability Plasma waves Quantum channel Quantum theory Circumferential direction Dispersion equations Field effect transistor (FETs) Hydrodynamic equations Oscillation frequency Quantum effects Research results Source and drains
DOI	10.1063/1.5130598
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China[10975114]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000515522800001
出版者	AMER INST PHYSICS
EI入藏号	20200107974212
EI主题词	Terahertz waves
EI分类号	711 Electromagnetic Waves - 714.2 Semiconductor Devices and Integrated Circuits - 931.4 Quantum Theory ; Quantum Mechanics - 932.3 Plasma Physics
来源库	WOS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/64285
专题	理学院
通讯作者	Zhang, Liping
作者单位	Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
第一作者单位	理学院
通讯作者单位	理学院
第一作者的第一单位	理学院
推荐引用方式 GB/T 7714	Li, Dongao,Zhang, Liping,Su, Junyan. Investigation of the Dyakonov-Shur instability for THz plasma waves in quantum gated cylindrical FET[J]. AIP ADVANCES,2019,9(12).
APA	Li, Dongao,Zhang, Liping,&Su, Junyan.(2019).Investigation of the Dyakonov-Shur instability for THz plasma waves in quantum gated cylindrical FET.AIP ADVANCES,9(12).
MLA	Li, Dongao,et al."Investigation of the Dyakonov-Shur instability for THz plasma waves in quantum gated cylindrical FET".AIP ADVANCES 9.12(2019).