Magnetic Moments Induced by Atomic Vacancies in Transition Metal Dichalcogenide Flakes

2D magnetism plays a key role in both fundamental physics and potential device applications. However, the instability of the discovered 2D magnetic materials has been one main obstacle in deep research and potential application of 2D magnetism. Here, a localized magnetic moment induced by Pt vacanci...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2021-01, Vol.33 (4), p.e2005465-n/a
Main Authors: Ge, Jun, Luo, Tianchuang, Lin, Zuzhang, Shi, Jianping, Liu, Yanzhao, Wang, Pinyuan, Zhang, Yanfeng, Duan, Wenhui, Wang, Jian
Format: Article
Language:English
Subjects:
Anisotropy
Chalcogenides
defect engineering
Flakes
Kondo effect
Kondo temperature
Magnetic materials
Magnetic moments
Magnetism
Magnetoresistance
Magnetoresistivity
Materials science
Transition metal compounds
transition metal dichalcogenides
two‐dimensional materials
Vacancies
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Summary:2D magnetism plays a key role in both fundamental physics and potential device applications. However, the instability of the discovered 2D magnetic materials has been one main obstacle in deep research and potential application of 2D magnetism. Here, a localized magnetic moment induced by Pt vacancies in air‐stable type‐II Dirac semimetal PtSe2 flakes is reported. The localized magnetic moments give rise to the Kondo effect, evidenced by logarithmic increment of resistance with decreasing temperature and isotropic negative longitudinal magnetoresistance. Additionally, the induced magnetic moment and Kondo temperature appear to depend on thickness in the thinner samples (
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.202005465