Electronic structure and magnetism in g -C4N3 controlled by strain engineering

L. Z. Liu; X. L. Wu; X. X. Liu; Paul K. Chu

doi:10.1063/1.4916814

Electronic structure and magnetism in g -C₄N₃ controlled by strain engineering

L. Z. Liu, X. L. Wu^*, X. X. Liu, Paul K. Chu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

36 Citations (Scopus)

43 Downloads (CityUHK Scholars)

Abstract

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 (G₀W₀). 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.

Original language	English
Article number	132406
Journal	Applied Physics Letters
Volume	106
Issue number	13
DOIs	https://doi.org/10.1063/1.4916814
Publication status	Published - 30 Mar 2015

Publisher's Copyright Statement

COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in L. Z. Liu, X. L. Wu, X. X. Liu, and Paul K. Chu , "Electronic structure and magnetism in g-C4N3 controlled by strain engineering", Appl. Phys. Lett. 106, 132406 (2015) and may be found at https://doi.org/10.1063/1.4916814.

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abstract = "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 (G0W0). 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.",

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AU - Liu, L. Z.

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N2 - 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 (G0W0). 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.

AB - 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 (G0W0). 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.

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