Harmonic generation predominantly from a single spin channel in a half metal

  title={Harmonic generation predominantly from a single spin channel in a half metal},
  author={G. P. Zhang and Y. H. Bai},
  journal={Physical Review B},
Harmonic generation in atoms and molecules has reshaped our understanding of ultrafast phenomena beyond the traditional nonlinear optics and has launched attosecond physics. Harmonics from solids represent a new frontier, where both majority and minority spin channels contribute to harmonics.} This is true even in a ferromagnet whose electronic states are equally available to optical excitation. Here, we demonstrate that harmonics can be generated {mostly} from a single spin channel in half… 

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