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

@article{Zhang2021HarmonicGP,
  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},
  year={2021},
  volume={103}
}
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… 

Figures and Tables from this paper

References

SHOWING 1-10 OF 71 REFERENCES
Solid-state harmonics beyond the atomic limit
TLDR
It is found that the high harmonic generation spectra from the rare-gas solids exhibit multiple plateaus extending well beyond the atomic limit of the corresponding gas-phase harmonics measured under similar conditions, suggesting the importance of electron–hole recollision in these solids.
Generating high-order optical and spin harmonics from ferromagnetic monolayers
TLDR
It is found that HHG carries spin information and sensitively depends on the relativistic spin–orbit coupling; and if they are dispersed into the crystal momentum k space, harmonics originating from real transitions can be k-resolved and carry the band structure information.
Anisotropic high-harmonic generation in bulk crystals
High-harmonic generation in a solid turns out to be sensitive to the interatomic bonding — a very useful feature that could enable the all-optical imaging of the interatomic potential. The
High-order harmonic generation in solid C60
High-order harmonic generation (HHG) has unleashed the power of strong laser physics in solids. Here we investigate HHG from a large system, solid ${\mathrm{C}}_{60}$, with 240 valence electrons
High-harmonic generation in quantum spin systems
We theoretically study the high-harmonic generation (HHG) in one-dimensional spin systems. While in electronic systems the driving by ac electric fields produces radiation from the dynamics of
Semiclassical analysis of high harmonic generation in bulk crystals
High harmonic generation (HHG) in solids is investigated. We find that interband emission is dominant for the midinfrared laser driver frequencies, whereas intraband emission dominates the
Magic high-order harmonics from a quasi-one-dimensional hexagonal solid
High-order harmonic generation (HHG) from atoms is a coherent light source that opens up attosecond physics, but it is the application of HHG to solids that brings much of excitement for the last
Extreme ultraviolet high-harmonic spectroscopy of solids
TLDR
This study indicates the association of the emitted EUV radiation with intraband currents of multi-petahertz frequency, induced in the lowest conduction band of SiO2, and exploits the EUV spectra to gain access to fine details of the energy dispersion profile of the conductionBand that are as yet inaccessible by photoemission spectroscopy in wide-bandgap dielectrics.
Theoretical analysis of high-harmonic generation in solids.
TLDR
The analysis indicates that the interband current neglected so far is the dominant mechanism for HHG, and saddle point analysis in the Keldysh limit yields an intuitive picture of interband HHG in solids similar to atomic HHG.
Optical high-order harmonic generation as a structural characterization tool
Structural characterization is essential to material engineering, but few tools can detect structural properties in the time domain. High harmonic generation (HHG) emerges as a new frontier that
...
1
2
3
4
5
...