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arXiv · 0704.3397

Quantized spin excitations in a ferromagnetic microstrip from microwave photovoltage measurements

Y. S. Gui·N. Mecking·C. -M. Hu
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Abstract

Quantized spin excitations in a single ferromagnetic microstrip have been measured using the microwave photovoltage technique. Several kinds of spin wave modes due to different contributions of the dipole-dipole and the exchange interactions are observed. Among them are a series of distinct dipole-exchange spin wave modes, which allow us to determine precisely the subtle spin boundary condition. A comprehensive picture for quantized spin excitations in a ferromagnet with finite size is thereby established. The dispersions of the quantized spin wave modes have two different branches separated by the saturation magnetization.

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Y. S. Gui, N. Mecking, C. -M. Hu. 2007-04-25. Quantized spin excitations in a ferromagnetic microstrip from microwave photovoltage measurements. https://doi.org/10.1103/physrevlett.98.217603

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