Transport properties of Z-shaped phosphorene nanoribbon devices

doi:10.1142/S0217984920502292

	Transport properties of Z-shaped phosphorene nanoribbon devices
	Song, M. R.1; Shi, H. L.1; Jiang, Z. T.1; Ren, Y. H.1; Han, Q. Z.2
刊名	MODERN PHYSICS LETTERS B
	2020-08-10
卷号	34 期号:22 页码:13
关键词	Density functional theory transport properties phosphorene nanoribbons
ISSN号	0217-9849
DOI	10.1142/S0217984920502292
英文摘要	By using first-principles calculations and the non-equilibrium Green's function, we theoretically study the electronic transport properties of a Z-shaped phosphorene nanoribbon (PNR) device, which is called ZSZ-PNR because it is composed of a left zigzag PNR electrode, an intermediate skewed armchair PNR (saPNR), and a right zigzag PNR electrode. First, we investigate the influences of the length and the width of the central saPNR on the ZSZ-PNR transport. The results show that the negative differential conductance (NDC) always appears in the case of the short central saPNR, and is independent of its width, while the NDC is inclined to vanish with the increase of the length. Also, an anomaly on the current-voltage (I-V) curves is observed for the ZSZ-PNR with a short saPNR. Next, the transport properties are analyzed according to the evolution of the energy bands of the electrodes, the molecular energy levels (MELs) of the central saPNR, as well as the transmission coefficients, the transmission eigenstates, and the eigenstates of the self-consistent Hamiltonian of the saPNR. Finally, we use a top gate and two parallel gates to manipulate the transport of the ZSZ-PNR, and find that all these gates can strengthen or suppress the ZSZ-PNR transport.
资助项目	National Natural Science Foundation of China[11774029] ; National Natural Science Foundation of China[11504374] ; National Key Research and Development Program of China[2017YFC0210304]
WOS关键词	TRANSISTORS
WOS研究方向	Physics
语种	英语
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
WOS记录号	WOS:000562050400008
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/41745]
专题	中国科学院过程工程研究所
通讯作者	Jiang, Z. T.
作者单位	1.Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Res Dept Environm Technol & Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Song, M. R.,Shi, H. L.,Jiang, Z. T.,et al. Transport properties of Z-shaped phosphorene nanoribbon devices[J]. MODERN PHYSICS LETTERS B,2020,34(22):13.
APA	Song, M. R.,Shi, H. L.,Jiang, Z. T.,Ren, Y. H.,&Han, Q. Z..(2020).Transport properties of Z-shaped phosphorene nanoribbon devices.MODERN PHYSICS LETTERS B,34(22),13.
MLA	Song, M. R.,et al."Transport properties of Z-shaped phosphorene nanoribbon devices".MODERN PHYSICS LETTERS B 34.22(2020):13.