DOI: 10.1002/adma.201703123. Half‐Metallic Behavior in 2D Transition Metal Dichalcogenides Nanosheets by Dual‐Native‐Defects Engineering

Half‐Metallic Behavior in 2D Transition Metal Dichalcogenides Nanosheets by Dual‐Native‐Defects Engineering

10.1002/adma.201703123

Crossref journal-article

Wiley

Advanced Materials (311)

Abstract

AbstractTwo‐dimensional transition metal dichalcogenides (TMDs) have been regarded as one of the best nonartificial low‐dimensional building blocks for developing spintronic nanodevices. However, the lack of spin polarization in the vicinity of the Fermi surface and local magnetic moment in pristine TMDs has greatly hampered the exploitation of magnetotransport properties. Herein, a half‐metallic structure of TMDs is successfully developed by a simple chemical defect‐engineering strategy. Dual native defects decorate titanium diselenides with the coexistence of metal‐Ti‐atom incorporation and Se‐anion defects, resulting in a high‐spin‐polarized current and local magnetic moment of 2D Ti‐based TMDs toward half‐metallic room‐temperature ferromagnetism character. Arising from spin‐polarization transport, the as‐obtained T‐TiSe1.8 nanosheets exhibit a large negative magnetoresistance phenomenon with a value of −40% (5T, 10 K), representing one of the highest negative magnetoresistance effects among TMDs. It is anticipated that this dual regulation strategy will be a powerful tool for optimizing the intrinsic physical properties of TMD systems.

Bibliography

Tong, Y., Guo, Y., Mu, K., Shan, H., Dai, J., Liu, Y., Sun, Z., Zhao, A., Zeng, X. C., Wu, C., & Xie, Y. (2017). HalfâMetallic Behavior in 2D Transition Metal Dichalcogenides Nanosheets by DualâNativeâDefects Engineering. Advanced Materials, 29(40). Portico.

Authors 11

Yun Tong (first)
Yuqiao Guo (additional)
Kejun Mu (additional)
Huan Shan (additional)
Jun Dai (additional)
Yi Liu (additional)
Zhe Sun (additional)
Aidi Zhao (additional)
Xiao Cheng Zeng (additional)
Changzheng Wu (additional)
Yi Xie (additional)

References 32 Referenced 69

Dates

Type	When
Created	7 years, 11 months ago (Sept. 1, 2017, 2:04 a.m.)
Deposited	1 year, 11 months ago (Sept. 15, 2023, 10:16 p.m.)
Indexed	4 weeks, 2 days ago (July 30, 2025, 3:37 a.m.)
Issued	7 years, 11 months ago (Sept. 1, 2017)
Published	7 years, 11 months ago (Sept. 1, 2017)
Published Online	7 years, 11 months ago (Sept. 1, 2017)
Published Print	7 years, 10 months ago (Oct. 1, 2017)

Funders 2

National Natural Science Foundation of China 10.13039/501100001809
Region: Asia
gov (National government)
Labels11
1. Chinese National Science Foundation
2. Natural Science Foundation of China
3. National Science Foundation of China
4. NNSF of China
5. NSF of China
6. 国家自然科学基金委员会
7. National Nature Science Foundation of China
8. Guójiā Zìrán Kēxué Jījīn Wěiyuánhuì
9. NSFC
10. NNSF
11. NNSFC
Awards4
1. U1432133
2. U1632154
3. 1162163
4. 21501164
Natural Science Foundation of Anhui Province 10.13039/501100003995
Region: Asia
gov (National government)
Labels3
1. 安徽省自然科学基金
2. NSF of Anhui Province
3. Anhui Provincial Natural Science Foundation
Awards1
1. 1608085QA08

BibTeX

@article{Tong_2017, title={Half‐Metallic Behavior in 2D Transition Metal Dichalcogenides Nanosheets by Dual‐Native‐Defects Engineering}, volume={29}, ISSN={1521-4095}, url={http://dx.doi.org/10.1002/adma.201703123}, DOI={10.1002/adma.201703123}, number={40}, journal={Advanced Materials}, publisher={Wiley}, author={Tong, Yun and Guo, Yuqiao and Mu, Kejun and Shan, Huan and Dai, Jun and Liu, Yi and Sun, Zhe and Zhao, Aidi and Zeng, Xiao Cheng and Wu, Changzheng and Xie, Yi}, year={2017}, month=sep }

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