2007年3月
Thermally excited spin wave modes in synthetic antiferromagnetic stripes
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
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- 巻
- 310
- 号
- 2
- 開始ページ
- 1949
- 終了ページ
- 1951
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.jmmm.2006.10.828
- 出版者・発行元
- ELSEVIER SCIENCE BV
Brillouin light scattering ( BLS) microscopy studies were performed on patterned synthetic antiferromagnetic ( SAF). films. SAF films with the stacking structure of SiO2/ Ta( 5 nm)/ FeNi( 6.8 nm)/ Ru( 0.4 nm)/ FeNi( 3.6 nm)/ Ru( 3 nm) were prepared using magnetron sputtering and were patterned into a stripe shape with a width of 2 mm. We measured the micro- BLS spectra at the center and the edge positions of the SAF stripe in a static magnetic field of 950 Oe applied perpendicular to the long axis. The spin wave frequencies of the SAF stripe decrease in comparison with those of the single FeNi film stripe. The difference between the spin wave frequencies at the center and at the edge is relatively small in the SAF samples, which is indicative for SAF films with small stray fields. Micromagnetic simulations provide a good account for the experimental observations. (c) 2006 Elsevier B. V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.jmmm.2006.10.828
- ISSN : 0304-8853
- Web of Science ID : WOS:000247720400023