Abstract

The spin wave propagating along a film of 100 nm-thick yttrium iron garnet is studied with temperature control. Using a vector network analyzer, temperature dependence of spin wave transmission is measured. We observe a clear resonance frequency shift of 210 MHz with temperature change of 40 K. This can be explained by the dispersion variation of the temperature. These results enable a complete pass or forbidden spin wave propagation in a certain frequency window with temperature control which might lead to application of spin wave filters.

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