The Zeeman splitting of bulk 2H-MoTe2 single crystal in high magnetic field

被引：8

作者：

Sun, Yan ^{[1
,2
,3
,4
]}

Zhang, Junpei ^{[5
]}

Ma, Zongwei ^{[1
,2
]}

Chen, Cheng ^{[5
]}

Han, Junbo ^{[5
]}

Chen, Fangchu ^{[3
,6
]}

Luo, Xuan ^{[6
]}

Sun, Yuping ^{[1
,2
,4
,6
]}

Sheng, Zhigao ^{[1
,2
,4
]}

机构：

[1] Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China

[2] Chinese Acad Sci, Hefei Sci Ctr, Hefei 230031, Peoples R China

[3] Univ Sci & Technol China, Hefei 230026, Peoples R China

[4] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[5] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China

[6] Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 10期

基金：

中国国家自然科学基金;

关键词：

OPTICAL-PROPERTIES; LAYER; MOS2; MOTE2; EXCITONS; SPECTRA; WSE2;

D O I：

10.1063/1.4977953

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A high magnetic field magneto-optical spectrum is utilized to study the A exciton of bulk 2H-MoTe2 single crystal. A clear Zeeman splitting of the A exciton is observed under high magnetic fields up to 41.68T, and the g-factor (-2.09 +/- 60.08) is deduced. Moreover, a high magnetic field enables us to obtain the quadratic diamagnetic shifts of the A exciton (0.486 mu eV T-2). Accordingly, the binding energy, reduced mass, and radius of the A exciton were obtained by using both two and three dimensional models. Compared with other transition metal dichalcogenides (TMDs), the A exciton of bulk 2H-MoTe2 has a relatively small binding energy and larger exciton radius, which provide fundamental parameters for comprehensive understanding of excitons in TMDs as well as their future applications.

引用

页数：5

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