ANHARMONICITY OF THE DIPOLE RESONANCE OF METAL CLUSTERS

@article{Hagino1999ANHARMONICITYOT,
  title={ANHARMONICITY OF THE DIPOLE RESONANCE OF METAL CLUSTERS},
  author={Kouichi Hagino},
  journal={Physical Review B},
  year={1999},
  volume={60}
}
  • K. Hagino
  • Published 13 January 1999
  • Physics
  • Physical Review B
We discuss the degree of anharmonicity of dipole plasmon resonances in metal clusters. We employ the time-dependent variational principle and show that the relative shift of the second phonon scales as ${N}^{\ensuremath{-}4/3}$ in energy, N being the number of particles. This scaling property coincides with that for nuclear giant resonances. Contrary to the previous study based on the boson-expansion method, the deviation from the harmonic limit is found to be almost negligible for Na clusters… 

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References

SHOWING 1-10 OF 17 REFERENCES

Oscillations in Finite Quantum Systems

Lücken bestehen in den Kenntnissen über Trennmechanismen und die Struktur-Retentions-Beziehungen. In den ersten Kapiteln werden die molekularen Vorstellungen der Chiralität und deren experimentelle

Phys

  • Rev. C56, 839
  • 1997

and K

  • Hagino, to be published

Rev. Mod. Phys

  • Rev. Mod. Phys
  • 1993

Phys. Rev. B39

  • Phys. Rev. B39
  • 1989

Phys. Rev. B54

  • Phys. Rev. B54
  • 1996

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 1998

Phys. Rev. C56

  • Phys. Rev. C56
  • 1997

Phys. Rev. B48

  • Phys. Rev. B48
  • 1993

Phys

  • Rev. B54, 4484
  • 1996