title: Collision properties of quasi-one-dimensional spin wave solitons and two-dimensional spin wave bullets.
abstract: Collision properties of quasi-one-dimensional spin wave envelope solitons propagating in narrow ferrite film waveguides and of two-dimensional self-focused spin wave packets (spin wave bullets) propagating in wide ferrite film samples are studied both experimentally and numerically. The experiments, performed by means of a space- and time-resolved Brillouin light scattering technique, have shown that quasi-one-dimensional spin wave envelope solitons retain their shapes after collisions, while two-dimensional spin wave bullets are destroyed in collisions. The experiments have also shown that the introduction of a fixed phase shift between the colliding envelope solitons leads to a qualitative change in their interaction at the collision point. Numerical modeling of head-on collisions of nonlinear spin wave packets based on two different approaches provides a good qualitative description of the observed collision phenomena.
authors.affiliation: Department of Physics, Oakland University, Rochester, Michigan 48309, USA.
authors.forename: A N
authors.initials: AN
authors.lastname: Slavin
authors.forename: O
authors.initials: O
authors.lastname: Büttner
authors.forename: M
authors.initials: M
authors.lastname: Bauer
authors.forename: S O
authors.initials: SO
authors.lastname: Demokritov
authors.forename: B
authors.initials: B
authors.lastname: Hillebrands
authors.forename: M P
authors.initials: MP
authors.lastname: Kostylev
authors.forename: B A
authors.initials: BA
authors.lastname: Kalinikos
authors.forename: V V
authors.initials: VV
authors.lastname: Grimalsky
authors.forename: Yu
authors.initials: Y
authors.lastname: Rapoport