title: Robust half-metallic ferromagnetism and curvature dependent magnetic coupling in fluorinated boron nitride nanotubes.
abstract: The fluorinated boron nitride (F-BN) nanostructures are found to be fully spin polarized and half-metallic by means of first-principles calculations based on the Heyd-Scuseria-Ernzerhof hybrid functional. It is found that the full spin polarization and 1 μB local moment in F-BN nanotubes are independent of tube radius and it is also robust in planar ribbons and sheets. The long-ranged ferromagnetic coupling between local moments decreases with decreasing tube radius. This suggests that F-BN systems with small local curvatures could be more easily experimentally observed and have greater potential applications in spin devices.
authors.affiliation: Key Laboratory of Advanced Technology of Materials (Ministry of Education), Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Mail Stop 165#, Chengdu, Sichuan 610031, China. csguo@swjtu.edu.cn ganly@swjtu.edu.cn.
authors.forename: Chunsheng
authors.initials: C
authors.lastname: Guo
authors.affiliation: Key Laboratory of Advanced Technology of Materials (Ministry of Education), Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Mail Stop 165#, Chengdu, Sichuan 610031, China. csguo@swjtu.edu.cn ganly@swjtu.edu.cn.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China.
authors.forename: Xin-Qiang
authors.initials: XQ
authors.lastname: Shi
authors.affiliation: Key Laboratory of Advanced Technology of Materials (Ministry of Education), Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Mail Stop 165#, Chengdu, Sichuan 610031, China. csguo@swjtu.edu.cn ganly@swjtu.edu.cn.
authors.forename: Li-Yong
authors.initials: LY
authors.lastname: Gan
authors.affiliation: Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Application, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China. jianghchem@pku.edu.cn.
authors.forename: Hong
authors.initials: H
authors.lastname: Jiang
authors.affiliation: Key Laboratory of Advanced Technology of Materials (Ministry of Education), Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Mail Stop 165#, Chengdu, Sichuan 610031, China. csguo@swjtu.edu.cn ganly@swjtu.edu.cn and School of Materials Science and Engineering, University of New South Wales, Sydney, 2052 NSW, Australia.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhao