Journal
APPLIED PHYSICS LETTERS
Volume 106, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4916814
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Funding
- National Basic Research Programs of China [2011CB922102, 2013CB932901]
- National Natural Science Foundation [11374141, 11404162]
- Natural Science Foundations of Jiangsu Province [BK20130549]
- City University of Hong Kong [7004188]
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Regulation of magnetism and half-metallicity has attracted much attention because of its potential in spintronics. The magnetic properties and electronic structure of graphitic carbon nitride (g-C4N3) with external strain are determined theoretically based on the density function theory and many-body perturbation theory (G(0)W(0)). Asymmetric deformation induced by uniaxial strain not only regulates the magnetic characteristics but also leads to a transformation from half-metallicity to metallicity. However, this transition cannot occur in the structure with symmetric deformation induced by biaxial strain. Our results suggest the use of strain engineering in metal-free spintronics applications. (C) 2015 AIP Publishing LLC.
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