-
- Kevin R. Smith
- Colorado State University 1 Department of Physics, , Fort Collins, Colorado 80523, USA
-
- Michael J. Kabatek
- Colorado State University 1 Department of Physics, , Fort Collins, Colorado 80523, USA
-
- Pavol Krivosik
- Colorado State University 1 Department of Physics, , Fort Collins, Colorado 80523, USA
-
- Mingzhong Wu
- Colorado State University 1 Department of Physics, , Fort Collins, Colorado 80523, USA
書誌事項
- 公開日
- 2008-08-15
- DOI
-
- 10.1063/1.2963688
- 公開者
- AIP Publishing
この論文をさがす
説明
<jats:p>Spin wave pulse propagation in a magnetic thin film under static, spatially nonuniform magnetic fields has been studied. The experiment was carried out with an yttrium iron garnet film strip. The film strip was magnetized with a spatially nonuniform magnetic field parallel to the length of the film strip. Spin wave pulses were excited with a microstrip transducer at one end of the film strip. The spin wave pulse propagation along the film strip was mapped with a high-resolution time- and space-resolved inductive magnetodynamic probe. The wave number for the spin wave pulses was found to increase in a spatially increasing field and decrease in a spatially decreasing field. The wave number change in a static, general spatially varying static field is reversible for this field-film geometry. The phase velocity was found to decrease in a spatially increasing magnetic field and increase in a spatially decreasing field. The carrier frequency of the spin wave pulses remained constant throughout pulse propagation.</jats:p>
収録刊行物
-
- Journal of Applied Physics
-
Journal of Applied Physics 104 (4), 043911-, 2008-08-15
AIP Publishing