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  Metal-insulator transition and the anomalous Hall effect in the layered magnetic materials VS2 and VSe2

Fuh, H.-R., Yan, B., Wu, S.-C., Felser, C., & Chang, C.-R. (2016). Metal-insulator transition and the anomalous Hall effect in the layered magnetic materials VS2 and VSe2. New Journal of Physics, 18: 113038, pp. 1-8. doi:10.1088/1367-2630/18/11/113038.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-2F54-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-295D-A
Genre: Journal Article

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 Creators:
Fuh, Huei-Ruh1, Author              
Yan, Binghai2, Author              
Wu, Shu-Chun3, Author              
Felser, Claudia4, Author              
Chang, Ching-Ray5, Author
Affiliations:
1Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_persistent22              
2Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863427              
3Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
5External Organizations, ou_persistent22              

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 Abstract: We investigated the electronic structure of the layered transition-metal dichalcogenides VS2 and VSe2 by first-principles calculations. Both compounds exhibit metal-insulator transitions when crossing over from the bulk to the two-dimensional monolayer. In the monolayer limit, the Coulomb interaction is enhanced due to the dimension reduction, leading to the insulating state. Moreover, these monolayers are found to be ferromagnetic, supplying excellent candidates for ferromagnetic insulators. When increasing the thickness, the few-layer structure turns metallic and presents large anomalous Hall conductivity (similar to 100 S/cm), which oscillates with respect to the thickness due to the size effect. Our findings presents profound materials, such as ferromagnetic insulators and anomalous Hall ferromagnets, for the spintronic application.

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Language(s): eng - English
 Dates: 2016-11-222016-11-22
 Publication Status: Published in print
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 Rev. Method: -
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Title: New Journal of Physics
  Abbreviation : New J. Phys.
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 18 Sequence Number: 113038 Start / End Page: 1 - 8 Identifier: ISSN: 1367-2630
CoNE: /journals/resource/954926913666