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

doi:10.1063/1.5130598

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	Investigation of the Dyakonov-Shur instability for THz plasma waves in quantum gated cylindrical FET
	Li, Dongao; Zhang, Liping; Su, Junyan
	2019-12-01
Source Publication	AIP ADVANCES
Volume	9 Issue:12
Abstract	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).
Keyword	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
Indexed By	SCI ; SCIE
Language	英语
Funding Project	National Natural Science Foundation of China[10975114]
WOS Research Area	Science & Technology - Other Topics ; Materials Science ; Physics
WOS Subject	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS ID	WOS:000515522800001
Publisher	AMER INST PHYSICS
EI Accession Number	20200107974212
EI Keywords	Terahertz waves
EI Classification Number	711 Electromagnetic Waves - 714.2 Semiconductor Devices and Integrated Circuits - 931.4 Quantum Theory ; Quantum Mechanics - 932.3 Plasma Physics
Source library	WOS
Citation statistics	Cited Times:3[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	https://ir.lut.edu.cn/handle/2XXMBERH/64285
Collection	理学院
Corresponding Author	Zhang, Liping
Affiliation	Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
First Author Affilication	Coll Sci
Corresponding Author Affilication	Coll Sci
First Signature Affilication	Coll Sci
Recommended Citation 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).

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