title: Noncollinear magnetism and exchange interaction in spin-spiral structures of thin film Fe(110).
abstract: Spin-spiral structures in a free-standing Fe(110) monolayer are determined by the first-principles film full-potential linearized augmented plane wave method with intra-atomic noncollinear magnetism. The results obtained predict that the spin-spiral structures are energetically favourable over the collinear ferromagnetic state. The interatomic exchange parameters, which are evaluated from the formation energy of the spin-spiral structures, indicate that a competition between the nearest-neighbour ferromagnetic interaction and the long-distant antiferromagnetic interactions leads to the stabilization of the spin-spiral structures. In addition, the spin-orbit coupling is found to play an important role in determining the magnetic ground state.
authors.affiliation: Department of Physics Engineering, Mie University, Tsu, Mie 514-8507, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Mizuno
authors.forename: Kohji
authors.initials: K
authors.lastname: Nakamura
authors.forename: Toru
authors.initials: T
authors.lastname: Akiyama
authors.forename: Tomonori
authors.initials: T
authors.lastname: Ito