title: Spin reorientation transition in single-domain.
abstract: We demonstrate that the interplay of in-plane biaxial and uniaxial anisotropy fields in results in a spin reorientation transition and an anisotropic ac susceptibility which is fully consistent with a simple single-domain model. The uniaxial and biaxial anisotropy constants vary, respectively, as the square and fourth power of the spontaneous magnetization across the whole temperature range up to . The weakening of the anisotropy at the transition may be of technological importance for applications involving thermally assisted magnetization switching.
authors.affiliation: School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom.
authors.forename: K-Y
authors.initials: KY
authors.lastname: Wang
authors.forename: M
authors.initials: M
authors.lastname: Sawicki
authors.forename: K W
authors.initials: KW
authors.lastname: Edmonds
authors.forename: R P
authors.initials: RP
authors.lastname: Campion
authors.forename: S
authors.initials: S
authors.lastname: Maat
authors.forename: C T
authors.initials: CT
authors.lastname: Foxon
authors.forename: B L
authors.initials: BL
authors.lastname: Gallagher
authors.forename: T
authors.initials: T
authors.lastname: Dietl