title: Magneto-optical observation of picosecond dynamics of single nanomagnets.
abstract: We report measurements of picosecond dynamics of individual nickel nanomagnets as a function of magnet dimension, aspect ratio, and magnetic environment. Spatial sensitivity to nanomagnet diameters as small as 125 nm is achieved by use of cavity enhancement of the magneto-optic Kerr effect (CE-MOKE). The importance of single-particle measurements without ensemble effects for extracting the size dependence of the intrinsic nanomagnet material properties is demonstrated.
authors.affiliation: School of Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA.
authors.forename: Anjan
authors.initials: A
authors.lastname: Barman
authors.forename: Suqin
authors.initials: S
authors.lastname: Wang
authors.forename: Jeffrey D
authors.initials: JD
authors.lastname: Maas
authors.forename: Aaron R
authors.initials: AR
authors.lastname: Hawkins
authors.forename: Sunghoon
authors.initials: S
authors.lastname: Kwon
authors.forename: Alexander
authors.initials: A
authors.lastname: Liddle
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Bokor
authors.forename: Holger
authors.initials: H
authors.lastname: Schmidt