| Issue |
EPL
Volume 131, Number 1, July 2020
|
|
|---|---|---|
| Article Number | 10005 | |
| Number of page(s) | 4 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/131/10005 | |
| Published online | 28 July 2020 | |
Large magnetoresistance in the monoclinic 2M WSe2
1 State Key Laboratory of High-Performance Ceramics and Super fine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences - Shanghai 200050, China
2 University of Chinese Academy of Sciences - Beijing 100049, China
3 State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University - Beijing 100871, China
Received: 15 January 2020
Accepted: 16 June 2020
1
-phase transition metal dichalcogenides possess lots of intriguing physical properties including superconductivity, large magnetoresistance and topological surface state. Here, we investigated the electrical transport properties of 2M WSe2, which is constructed by 
WSe2 layers. We found that the 2M WSe2 has a high carrier mobility of 
at 5 K. Moreover, large non-saturated magnetoresistance (MR) of 2M WSe2 was observed to be up to 3500% at 2 K under a magnetic field of 9 T. The first-principle calculations show that 2M WSe2 displays a typical-semimetal band structure with the coexistence of electron pockets and hole pockets.
PACS: 07.85.-m – X- and γ-ray instruments / 75.47.-m – Magnetotransport phenomena; materials for magnetotransport / 71.15.-m – Methods of electronic structure calculations
© 2020 EPLA
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