Spin Wave Propagation in Non-uniform Magnetic Fields

Kabatek, Michael J.; Tucker, James Derek

There has been extensive work on spin wave dynamics in ferrite film structures for both fundamental understanding and device applications. However, all previous work has mainly involved spin wave propagation in spatially uniform magnetic fields. This work demonstrates, for the first time, high resolution time and space resolved inductive probe imaging of spin wave propagation in spatially non-uniform magnetic field configurations. Spin wave propagation in spatially non-uniform fields allows for wave packet manipulations that involve changes in both the carrier wave number and the wave packet group velocity. These spin wave properties can be used to extend basic understanding of linear and nonlinear spin wave dynamics, and to develop a new class of wavelength and velocity selective devices. This work was support in part by the U.S. Army Research Office, MURI Grant W911NF-04-1-0247; and the Russian Foundation for Basic Research, Grant 05-02-17714.

Colorado State University. Libraries

Patton, Carl E.

Wu, Mingzhong

2006

image ; text

application/pdf

STUF2006100010ISTC

eng

English