title: The magnetism and spin-dependent electronic transport properties of boron nitride atomic chains.
abstract: Very recently, boron nitride atomic chains were successively prepared and observed in experiments [O. Cretu et al., ACS Nano 8, 11950 (2015)]. Herein, using a first-principles technique, we study the magnetism and spin-dependent electronic transport properties of three types of BN atomic chains whose magnetic moment is 1 μB for BnNn-1, 2 μB for BnNn, and 3 μB for BnNn+1 type atomic chains, respectively. The spin-dependent electronic transport results demonstrate that the short BnNn+1 chain presents an obvious spin-filtering effect with high spin polarization ratio (>90%) under low bias voltages. Yet, this spin-filtering effect does not occur for long BnNn+1 chains under high bias voltages and other types of BN atomic chains (BnNn-1 and BnNn). The proposed short BnNn+1 chain is predicted to be an effective low-bias spin filters. Moreover, the length-conductance relationships of these BN atomic chains were also studied.
authors.affiliation: College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, China.
authors.forename: Yipeng
authors.initials: Y
authors.lastname: An
authors.affiliation: College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, China.
authors.forename: Mengjun
authors.initials: M
authors.lastname: Zhang
authors.affiliation: School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China.
authors.forename: Dapeng
authors.initials: D
authors.lastname: Wu
authors.affiliation: College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, China.
authors.forename: Zhaoming
authors.initials: Z
authors.lastname: Fu
authors.affiliation: College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, China.
authors.forename: Tianxing
authors.initials: T
authors.lastname: Wang
authors.affiliation: College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, China.
authors.forename: Zhaoyong
authors.initials: Z
authors.lastname: Jiao
authors.affiliation: Department of Physics and Astronomy and NanoSEC, University of Georgia, Athens, Georgia 30602, USA.
authors.forename: Kun
authors.initials: K
authors.lastname: Wang