Ferromagnetism of 1T′-MoS2 Nanoribbons Stabilized by Edge Reconstruction and Its Periodic Variation on Nanoribbons Width

被引：52

作者：

Chen, Kaiyun ^{[1
]}

Deng, Junkai ^{[1
]}

Ding, Xiangdong ^{[1
]}

Sun, Jun ^{[1
]}

Yang, Sen ^{[1
]}

Liu, Jefferson Zhe ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China

[2] Univ Melbourne, Dept Mech Engn, Parkville, Vic 3010, Australia

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2018年 / 140卷 / 47期

基金：

中国博士后科学基金;

关键词：

TRANSITION-METAL DICHALCOGENIDES; PHASE-TRANSITION; MOS2; MONOLAYER; EXCHANGE; POINTS; ZIGZAG;

D O I：

10.1021/jacs.8b09247

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanoribbons (NRs) of two-dimensional (2D) materials have attracted intensive research interests because of exotic physical properties at edges as well as tunable properties via width control. In this paper, using density functional theory (DFT) calculations, we discover sensitive dependence of magnetic properties of 1T'-MoS2 NRs, that is, periodic variation of magnetic moments between 0.1 and 1.2 mu(B), on NR width (even or odd number of MoS2 units). Our results reveal that a special edge reconstruction, which is not recognized before, stabilizes the ferromagnetic (FM) ground state. Our results also suggest that the FM state could be stable under ambient condition. This study indicates a promising means to integrate multiple magnetic units for small-scale functional devices, such as information storage and spintronics, on a single piece of MoS2 NR by designing segments with different width.

引用

页码：16206 / 16212

页数：7

共 44 条

[1]

Acerce M, 2015, NAT NANOTECHNOL, V10, P313, DOI [10.1038/nnano.2015.40, 10.1038/NNANO.2015.40]

[2] Mechanical and Electronic Properties of MoS2 Nanoribbons and Their Defects [J].

Ataca, C. ;

Sahin, H. ;

Akturk, E. ;

Ciraci, S. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (10) :3934-3941

[3] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[4] One-dimensional metallic edge states in MoS2 -: art. no. 196803 [J].

Bollinger, MV ;

Lauritsen, JV ;

Jacobsen, KW ;

Norskov, JK ;

Helveg, S ;

Besenbacher, F .

PHYSICAL REVIEW LETTERS, 2001, 87 (19) :1-196803

[5] Atomically Flat Zigzag Edges in Monolayer MoS2 by Thermal Annealing [J].

Chen, Qu ;

Li, Huashan ;

Xu, Wenshuo ;

Wang, Shanshan ;

Sawada, Hidetaka ;

Allen, Christopher S. ;

Kirkland, Angus I. ;

Grossman, Jeffrey C. ;

Warner, Jamie H. .

NANO LETTERS, 2017, 17 (09) :5502-5507

[6] Controlled Growth of 1D MoSe2 Nanoribbons with Spatially Modulated Edge States [J].

Cheng, Fang ;

Xu, Hai ;

Xu, Wentao ;

Zhou, Pinjia ;

Martin, Jens ;

Loh, Kian Ping .

NANO LETTERS, 2017, 17 (02) :1116-1120

[7] Understanding catalysis in a multiphasic two-dimensional transition metal dichalcogenide [J].

Chou, Stanley S. ;

Sai, Na ;

Lu, Ping ;

Coker, Eric N. ;

Liu, Sheng ;

Artyushkova, Kateryna ;

Luk, Ting S. ;

Kaehr, Bryan ;

Brinker, C. Jeffrey .

NATURE COMMUNICATIONS, 2015, 6

[8] The Edge Stresses and Phase Transitions for Magnetic BN Zigzag Nanoribbons [J].

Deng, Junkai ;

Yin, Yuefeng ;

Niu, Huanhuan ;

Ding, Xiangdong ;

Sun, Jun ;

Medhekar, Nikhil V. .

SCIENTIFIC REPORTS, 2017, 7

[9] Edge stresses of non-stoichiometric edges in two-dimensional crystals [J].

Deng, Junkai ;

Fampiou, Ioanna ;

Liu, J. Z. ;

Ramasubramaniam, Ashwin ;

Medhekar, N. V. .

APPLIED PHYSICS LETTERS, 2012, 100 (25)

[10] Structural Phase Transitions by Design in Monolayer Alloys [J].

Duerloo, Karel-Alexander N. ;

Reed, Evan J. .

ACS NANO, 2016, 10 (01) :289-297

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