title: Magnetic ordering of dangling bond networks on hydrogen-deposited Si(111) surfaces.
abstract: Based on total-energy electronic-structure calculations within the density-functional theory, we find that a high spin state is realized for an ultimate dangling bond unit on an otherwise hydrogen-covered Si(111) surface. We further propose a systematic method of constructing nanometer-scale dangling bond networks that exhibit the ferrimagnetic spin ordering. The interplay between the electron-electron interaction and the surface reconstruction is elucidated.
authors.affiliation: Institute of Physics and Center for Computational Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8571, Japan.
authors.forename: Susumu
authors.initials: S
authors.lastname: Okada
authors.forename: Kenji
authors.initials: K
authors.lastname: Shiraishi
authors.forename: Atsushi
authors.initials: A
authors.lastname: Oshiyama