Quantized spin excitation modes in patterned ferromagnetic stripe arrays

被引：8

作者：

Guslienko, KY

Pishko, V

Novosad, V

Buchanan, K

Bader, SD

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] Inst Low Temp, UA-61103 Kharkov, Ukraine

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 10期

关键词：

D O I：

10.1063/1.1850364

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The high-frequency dynamic properties of patterned ferromagnetic microstripe arrays were studied using ferromagnetic resonance (FMR). The samples were fabricated by means of electron-beam lithography and magnetron sputtering followed by liftoff. The 20 nm thick and 1 mu m wide stripes were arranged into a regular array with a period of 2 Am. The resonance spectra were taken at a fixed frequency of 9.38 GHz for different sample orientations with respect to the applied field. In the case of perpendicularly magnetized stripes, a set of multiple resonance peaks is observed below the main FMR peak. A quantitative description of the observed spectra is given using a dipolar-exchange spin-wave dispersion equation. The calculations are in agreement with the experimental data. (c) 2005 American Institute of Physics.

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页数：3

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