Collision properties of quasi-one-dimensional spin wave solitons and two-dimensional spin wave bullets.
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.
Slavin
A N
AN
Department of Physics, Oakland University, Rochester, Michigan 48309, USA.
Büttner
O
O
Bauer
M
M
Demokritov
S O
SO
Hillebrands
B
B
Kostylev
M P
MP
Kalinikos
B A
BA
Grimalsky
V V
VV
Rapoport
Yu
Y