期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 125, 期 1, 页码 873-877出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.0c07847
关键词
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资金
- Tsinghua University Initiative Scientific Research Program
- NSFC [11774196, 11904350]
- USTC
- Anhui Provincial Natural Science Foundation [2008085QA30]
First-principles calculations show that the predominant spin exchange of a hexagonal CoO2 layer is near the ferromagnetic-to-antiferromagnetic transition point, and its magnetic ground state can be easily altered by factors like substrate dielectricity and strain. Additionally, the dopability of a stack of CoO2 layers is found to depend sensitively on the interlayer distance, allowing for effective manipulation of electronic properties and revealing an important intercalation effect in related bulk materials.
By performing first-principles calculations, we find that the predominant spin exchange of a hexagonal CoO2 layer is in proximity to the ferromagnetic-to-antiferromagnetic transition point. Its magnetic ground state can be easily altered by, e.g., substrate dielectricity and strain. In addition, the dopability of a stack of CoO2 layers is found to sensitively depend on the interlayer distance, which not only renders effective manipulation of the electronic property but also reveals an important intercalation effect in related bulk materials.
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