Excitation of propagating spin waves with global uniform microwave fields

被引：48

作者：

Au, Y. ^{[1
]}

Davison, T. ^{[1
]}

Ahmad, E. ^{[1
]}

Keatley, P. S. ^{[1
]}

Hicken, R. J. ^{[1
]}

Kruglyak, V. V. ^{[1
]}

机构：

[1] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

The authors gratefully acknowledge funding received from the EC’s Seventh Framework Programme (FP7/2007-2013) under Grant Agreement No. 228673 (MAGNONICS) and from Engineering and Physical Sciences Research Council (EPSRC) of United Kingdom under Grant No. EP/E055087/1;

D O I：

10.1063/1.3571444

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate a magnonic architecture that converts global free-space uniform microwaves into spin waves propagating in a stripe magnonic waveguide. The architecture is based upon dispersion mismatch between the narrow magnonic waveguide and a wide "antenna" patch, both patterned from the same magnetic film. The spin waves injected into the waveguide travel to distances as large as several tens of micrometers. The antennas can be placed at multiple positions on a magnonic chip and used to excite mutually coherent multiple spin waves for magnonic logic operations. This demonstration paves way for "magnonics" to become a pervasive technology for information processing. (C) 2011 American Institute of Physics. [doi:10.1063/1.3571444]

引用

页数：3

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