Volume 77, Number 5, March 2007
Article Number 57002
Number of page(s) 5
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
Published online 19 February 2007
EPL, 77 (2007) 57002
DOI: 10.1209/0295-5075/77/57002

Linear and nonlinear phase accumulation of backward volume magnetostatic spin waves in yttrium-iron-garnet spin-wave waveguides

T. Schneider1, A. A. Serga1, B. Hillebrands1 and M. P. Kostylev2

1  Fachbereich Physik, TU Kaiserslautern - Erwin-Schrödinger-Str. 56, 67663 Kaiserslautern, Germany
2  School of Physics, M013, University of Western Australia - 35 Stirling Highway, Crawley, WA 6009, Australia

received 20 October 2006; accepted in final form 5 January 2007; published March 2007
published online 19 February 2007

Using the newly developed phase-sensitive Brillouin light scattering spectroscopy technique we investigate the nonlinear influence of the spin-wave amplitude on the spin-wave phase. Nonlinear phase splitting between the peak and the tail of nonlinear spin-wave pulses was observed for dipolar-dominated spin-wave pulses propagating in yttrium-iron-garnet spin-wave waveguides. A model to describe this effect is presented.

75.30.Ds - Spin waves.
78.35.+c - Brillouin and Rayleigh scattering; other light scattering.
05.45.-a - Nonlinear dynamics and chaos.

© Europhysics Letters Association 2007