Spin-Orbit Splitting in Single-Layer MoS2 Revealed by Triply Resonant Raman Scattering

被引：135

作者：

Sun, Linfeng ^{[1
]}

Yan, Jiaxu ^{[1
]}

Zhan, Da ^{[1
,2
]}

Liu, Lei ^{[3
]}

Hu, Hailong ^{[1
,2
]}

Li, Hong ^{[4
]}

Tay, Ben Kang ^{[4
]}

Kuo, Jer-Lai ^{[5
]}

Huang, Chung-Che ^{[6
]}

Hewak, Daniel W. ^{[6
]}

Lee, Pooi See ^{[2
]}

Shen, Ze Xiang ^{[1
,2
]}

机构：

[1] Nanyang Technol Univ, Sch Phys & Math Sci, Ctr Disrupt Photon Technol, Singapore 637371, Singapore

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Mat Technol Div, Singapore 639798, Singapore

[3] Chinese Acad Sci, CIOMP, Key Lab Luminescence & Applicat, Changchun 130033, Peoples R China

[4] Nanyang Technol Univ, Sch Elect & Elect Engn, Microelect Ctr, Singapore 639798, Singapore

[5] Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan

[6] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

TOTAL-ENERGY CALCULATIONS; TRANSITION;

D O I：

10.1103/PhysRevLett.111.126801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Although new spintronic devices based on the giant spin-orbit splitting of single-layer MoS2 have been proposed, such splitting has not been studied effectively in experiments. This Letter reports the valence band spin-orbit splitting in single-layer MoS2 for the first time, probed by the triply resonant Raman scattering process. We found that upon 325 nm laser irradiation, the second order overtone and combination Raman modes of single-layer MoS2 are dramatically enhanced. Such resonant Raman enhancement arises from the electron-two-phonon triple resonance via the deformation potential and Fro "hlich interaction. As a sensitive and precise probe for the spin-orbit splitting, the triply resonant Raman scattering will provide a new and independent route to study the spin characteristics of MoS2.

引用

页数：5

共 50 条

[31] Quantum Transport and Observation of Dyakonov-Perel Spin-Orbit Scattering in Monolayer MoS2
Schmidt, H.
Yudhistira, I.
Chu, L.
Neto, A. H. Castro
Oezyilmaz, B.
Adam, S.
Eda, G.
PHYSICAL REVIEW LETTERS, 2016, 116 (04)
[32] Extrinsic spin-orbit coupling induced enhanced spin pumping in few-layer MoS2/Py
Bansal, Rajni
Kumar, Akash
Chowdhury, Niru
Sisodia, Naveen
Barvat, Arun
Dogra, Anjana
Pal, Prabir
Muduli, P. K.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2019, 476 : 337 - 341
[33] Single-layer MoS2 nanopores as nanopower generators
Feng, Jiandong
Graf, Michael
Liu, Ke
Ovchinnikov, Dmitry
Dumcenco, Dumitru
Heiranian, Mohammad
Nandigana, Vishal
Aluru, Narayana R.
Kis, Andras
Radenovic, Aleksandra
NATURE, 2016, 536 (7615) : 197 - +
[34] Electronic Structure of Epitaxial Single-Layer MoS2
Miwa, Jill A.
Ulstrup, Soren
Sorensen, Signe G.
Dendzik, Maciej
Cabo, Antonija Grubisic
Bianchi, Marco
Lauritsen, Jeppe Vang
Hofmann, Philip
PHYSICAL REVIEW LETTERS, 2015, 114 (04)
[35] Electronic and optical properties of single-layer MoS2
Dong, Hai-Ming
Guo, San-Dong
Duan, Yi-Feng
Huang, Fei
Xu, Wen
Zhang, Jin
FRONTIERS OF PHYSICS, 2018, 13 (04)
[36] Single-layer MoS2 nanopores as nanopower generators
Jiandong Feng
Michael Graf
Ke Liu
Dmitry Ovchinnikov
Dumitru Dumcenco
Mohammad Heiranian
Vishal Nandigana
Narayana R. Aluru
Andras Kis
Aleksandra Radenovic
Nature, 2016, 536 : 197 - 200
[37] Chiral tunneling in single-layer graphene with Rashba spin-orbit coupling: Spin currents
Avishai, Y.
Band, Y. B.
PHYSICAL REVIEW B, 2021, 103 (13)
[38] Water desalination with a single-layer MoS2 nanopore
Heiranian, Mohammad
Farimani, Amir Barati
Aluru, Narayana R.
NATURE COMMUNICATIONS, 2015, 6
[39] Water desalination with a single-layer MoS2 nanopore
Mohammad Heiranian
Amir Barati Farimani
Narayana R. Aluru
Nature Communications, 6
[40] Electronic and optical properties of single-layer MoS2
Hai-Ming Dong
San-Dong Guo
Yi-Feng Duan
Fei Huang
Wen Xu
Jin Zhang
Frontiers of Physics, 2018, 13

← 1 2 3 4 5 →