Tuning the magnetism of a ZrS2 monolayer by substitutional doping

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	Tuning the magnetism of a ZrS2 monolayer by substitutional doping
	Yang, BS ; Zheng, HL ; Han, RL ; Du, XB ; Yan, Y
刊名	RSC ADVANCES
	2014
卷号	4 期号:97 页码:54335
ISSN号	2046-2069
通讯作者	Yan, Y (reprint author), Jilin Univ, Dept Phys, Minist Educ, Key Lab Phys & Technol Adv Batteries, Changchun 130012, Peoples R China.
中文摘要	In view of the important role of developing efficient approaches to induce and manipulate the magnetism in semiconducting transition metal dichalcogenide monolayers for their application in low-dimensional spintronic devices, the influence of a series of transition metal (TM) (Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Y, Nb and Mo), alkali metals (Li and Na) and alkaline-earth (Ca) dopants on the electronic structure and magnetic properties of a ZrS2 monolayer are investigated using first-principles calculations. It is shown that Ca, Sc, Ti, Ni and Y dopants cannot induce the magnetism in the doped ZrS2 monolayer and the stability of the magnetic state of the Na doped system is very small, while the ground state of Li, V, Cr, Mn, Fe, Co, Nb and Mo-doped systems are magnetic and the magnetic moment induced by 3d TM, 4d TM and Li dopants are mainly contributed by the 3d states of the 3d TM atom, the 4d states of the 4d TM atom and its nearing Mo atoms, and the 3p states of the S atoms and the interstitial region around Li, respectively. The evolutions of the magnetic moments with the different TM dopants, such as Ti, V, Cr, Mn, Fe, Co, Ni, Nb and Mo, can be interpreted in terms of a simple analysis based on the molecular orbitals and electron filling. Furthermore, the magnetic coupling between the moments induced by two Li, V, Cr, Fe, Co, Nb and Mo is long-range ferromagnetic and the coupling can be attributed to the hybridization interaction involving polarized electrons or holes, whereas the coupling between the moments induced by two Mn is anti-ferromagnetic. The calculated results suggest that substitutional doping of Li, V, Cr, Fe, Co and Mo atoms can induce the room temperature ferromagnetism in the ZrS2 monolayer.
资助信息	National Natural Science Foundation of China [11174104]; International Collaborative Research Program of China [2011DFR01060]; National Fund for Fostering Talents of Basic Science [J1103202]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59648]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yang, BS,Zheng, HL,Han, RL,et al. Tuning the magnetism of a ZrS2 monolayer by substitutional doping[J]. RSC ADVANCES,2014,4(97):54335.
APA	Yang, BS,Zheng, HL,Han, RL,Du, XB,&Yan, Y.(2014).Tuning the magnetism of a ZrS2 monolayer by substitutional doping.RSC ADVANCES,4(97),54335.
MLA	Yang, BS,et al."Tuning the magnetism of a ZrS2 monolayer by substitutional doping".RSC ADVANCES 4.97(2014):54335.