Structural stability and electronic properties of carbon star lattice monolayer

doi:10.1088/1674-1056/23/9/096104

Abstract By means of the first-principles calculations, we have investigated the structural stability and electronic properties of carbon star lattice monolayer and nanoribbons. The phase stability of the carbon star lattice is verified through phonon-mode analysis and room temperature molecular dynamics simulations. The carbon star lattice is found to be metallic due to the large states across the Fermi-level contributed by p_z orbital. Furthermore, the nanoribbons are also found to be metallic and no spin polarization occurs, except for the narrowest nanoribbon with one C₁₂ ring, which has a ferromagnetic ground state. Our results show that carbon star lattice monolayer and nanoribbons have rich electronic properties with great potential in future electronic nanodevices.

Keywords: carbon star lattice structural stability electronic properties first-principles calculations

Received: 03 March 2014
Revised: 16 April 2014
Accepted manuscript online:

PACS:	61.48.-c	(Structure of fullerenes and related hollow and planar molecular structures)
	61.46.-w	(Structure of nanoscale materials)
	73.22.-f	(Electronic structure of nanoscale materials and related systems)
	63.20.Dj

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11274356) and the Ministry of Environmental Protection of China (Grant Nos. 200909086 and 201109037).

Corresponding Authors: Wang Jian-Tao
E-mail: wjt@aphy.iphy.ac.cn

Cite this article:

Fan Xue-Lan (范雪兰), Niu Chun-Yao (牛春要), Wang Xin-Quan (王新全), Wang Jian-Tao (王建涛), Li Han-Dong (李捍东) Structural stability and electronic properties of carbon star lattice monolayer 2014 Chin. Phys. B 23 096104

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