We report a time-resolved propagating spin wave spectroscopy for Fe19 Ni81 film. We show that the amplitude of the spin-wave packet depends on the direction of magnetization and that its phase can be controlled by the polarity of pulsed magnetic field for the excitation. The nonreciprocal emission of spin-wave packet can be utilized for the binary spin-wave input into the spin-wave logic circuit.
Bibliographical noteFunding Information:
We acknowledge Dr. R. D. McMichael for fruitful discussions. This work was supported by Grant-in-Aids from JSPS/MEXT. K.J.L. acknowledges support from DRC program by KRCF.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)