Observation of spatiotemporal self-focusing of spin waves in magnetic films

被引:85
作者
Bauer, M
Buttner, O
Demokritov, SO
Hillebrands, B
Grimalsky, V
Rapoport, Y
Slavin, AN
机构
[1] Univ Kaiserslautern, Fachbereich Phys & Forschungs & Entwicklungsschwe, D-67663 Kaiserslautern, Germany
[2] T Shevchenko Kiev State Univ, UA-252601 Kiev, Ukraine
[3] Oakland Univ, Dept Phys, Rochester, MI 48309 USA
关键词
D O I
10.1103/PhysRevLett.81.3769
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The first observation of spatiotemporal self-focusing of spin waves is reported. The experimental results are obtained for dipolar spin waves in yttrium-iron-garnet films by means of a newly developed space- and time-resolved Brillouin Light scattering technique. They demonstrate self-focusing of a moving wave pulse in two spatial dimensions, and formation of localized two-dimensional wave packets, the collapse of which is stopped by dissipation. The experimental results are in good qualitative agreement with numerical simulations. [S0031-9007(98)07425-0].
引用
收藏
页码:3769 / 3772
页数:4
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