title: Long-Range Magnetic Ordering and Switching of Magnetic State by Electric Field in Porous Phosphorene.
abstract: We explored the possibility of long-range magnetic ordering in two-dimensional porous phosphorene (PP) layer by means of ab-initio calculations. The self-passivated pore geometry showed a nonmagnetic state while the pore geometry with dangling bond at two zigzag edges with a distance of 7.7 Å preferred an antiferromagnetic ordering (AFM). Pore to pore magnetic interaction with a distance of 13.5 Å between two pores was found to be remarkably long ranged, and this emerges from the interactions between the magnetic tails of the edge states in the armchair direction. The AFM state was persisted by the oxidation of the edge. Interestingly, the long-range AFM ordering changed to long-range ferromagnetic (FM) ordering by external electric field. The results are noteworthy in the interplay between electric field and electronic spin degree of freedom in phosphorene studies and may also open a promising way to explore phosphorene-based spintronics devices.
authors.affiliation: Department of Physics, Pukyong National University , Busan 608-737, South Korea.
authors.forename: Arqum
authors.initials: A
authors.lastname: Hashmi
authors.affiliation: Department of Physics, Pukyong National University , Busan 608-737, South Korea.
authors.forename: M Umar
authors.initials: MU
authors.lastname: Farooq
authors.affiliation: Department of Physics, Pukyong National University , Busan 608-737, South Korea.
authors.forename: Jisang
authors.initials: J
authors.lastname: Hong