title: Hydrogenations and electric field induced magnetic behaviors in armchair silicene nanoribbons.
abstract: Using the first-principles calculations, we investigate the geometric, electronic and magnetic properties of armchair silicene nanoribbons with different edge hydrogenations. Our results show that the interesting magnetic behaviors such as the bipolar magnetic semiconductor can be found. Moreover, the addition of the transverse electric field can modulate the bipolar magnetic semiconductor to half-metal or spin-splitting metal. And the spin-up electrons are localized at one edge, the spin-down holes localized at the opposite edge under the external electric field. These results may present a new avenue for band engineering of silicene nanoribbons and benefit the design of silicon-based nano-spin-devices in nanoelectronics.
authors.affiliation: Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Zhang
authors.affiliation: Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, China.
authors.forename: Mengqiu
authors.initials: M
authors.lastname: Long
authors.affiliation: Physical Science and Technology College of Yichun University, Yichun 336000, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Xie
authors.affiliation: Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Ouyang
authors.affiliation: Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.affiliation: Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, China.|Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, United States.
authors.forename: Yongli
authors.initials: Y
authors.lastname: Gao