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- W2909474946 abstract "Mono-layered h-BN and its derivatives are very important low-dimensional materials, which have been widely investigated so far. Here, we theoretically study the structural stability and magneto-electronic properties of oxygen (O) terminated zigzag-edged h-BN nanoribbons, especially focusing on strain tuning effects. The O dimerization at the B edge of the ribbon enhances the system stability greatly. A Poisson ratio of 0.2 and bearing a strain more than 20% can be reached. In the absence of strain, the O-terminated ribbon is a magnetic metal. However, the rich magnetic phase transitions among the non-magnetic metal, a spin gapless semiconductor, and a wide-gap half-metal can be realized continuously by applying strain in the ferromagnetic state. Thus, based on such a material feature, we can design a magnetic switch device which can work between the magnetic and non-magnetic states by strain modification. Also shown is that the magnetism stability can be enhanced to the level at room temperature upon strain, and the massless Dirac-fermion behavior for the β-spin state can be clearly detected in the spin gapless semiconductor phase under appropriate strains." @default.
- W2909474946 created "2019-01-25" @default.
- W2909474946 creator A5024901794 @default.
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- W2909474946 date "2019-02-14" @default.
- W2909474946 modified "2023-09-25" @default.
- W2909474946 title "Strain-induced rich magnetic phase transitions and enhancement of magnetic stability for O-terminated h-BN nanoribbons" @default.
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- W2909474946 doi "https://doi.org/10.1088/1361-648x/aafec5" @default.
- W2909474946 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30645986" @default.
- W2909474946 hasPublicationYear "2019" @default.
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