Unidirectional control of optically induced spin waves

@article{Yoshimine2017UnidirectionalCO,
  title={Unidirectional control of optically induced spin waves},
  author={Isao Yoshimine and Y. Y. Tanaka and Takayuki Shimura and T. Satoh},
  journal={Europhysics Letters},
  year={2017},
  volume={117}
}
Unidirectional control of optically induced spin waves in a rare-earth iron garnet crystal is demonstrated. We observed the interference of two spin-wave packets with different initial phases generated by circularly polarized light pulses. This interference results in unidirectional propagation if the spin-wave sources are spaced apart at 1/4 of the wavelength of the spin waves and the initial phase difference is set to . The propagating direction of the spin wave is switched by the… 

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