title: A radical polymer as a two-dimensional organic half metal.
abstract: Given that half-metals are promising futuristic materials for spintronics, organic materials showing half-metal character are highly desirable for spintronic devices, not only owing to their weak spin-orbit and hyperfine interactions, but also their light and flexible properties. We predict that a two-dimensional organic 2,4,6-tri-(1,3,5-triazinyl)methyl radical polymer has half-metallic properties as well as a spontaneous magnetic ordering at ambient temperature. The quantum transmission is studied based on the nonequilibrium Green function theory coupled with density functional theory. The half-metallic property in the triazine-based polymer depends mainly on the nature of the p-band in contrast to of conventional half metals in which the nature of the d-band is more important.
authors.affiliation: Center for Superfunctional Materials, Department of Chemistry, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea.
authors.forename: Eun Cheol
authors.initials: EC
authors.lastname: Lee
authors.forename: Young Cheol
authors.initials: YC
authors.lastname: Choi
authors.forename: Woo Youn
authors.initials: WY
authors.lastname: Kim
authors.forename: N Jiten
authors.initials: NJ
authors.lastname: Singh
authors.forename: Sik
authors.initials: S
authors.lastname: Lee
authors.forename: Ji Hoon
authors.initials: JH
authors.lastname: Shim
authors.forename: Kwang S
authors.initials: KS
authors.lastname: Kim