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Observation of three-magnon light scattering in CuGeO_3

Strongly Correlated Electrons 2016-08-15 v1
Authors: G. Els , P. H. M. van Loosdrecht , P. Lemmens , H. Vonberg , G. Güntherodt , G. S. Uhrig , O. Fujita , J. Akimitsu , G. Dhalenne , A. Revcolevschi
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Abstract

Temperature and magnetic field dependent polarized Brillouin spectra of CuGeO_3 are reported. In addition to a bound singlet state at 30 cm^{-1}, a new feature has been observed at 18 cm^{-1}. This feature is interpreted in terms of a novel three-magnon light scattering process between excited triplet states.

Keywords

three-magnon scattering Brillouin spectroscopy CuGeO3 triplet states bound singlet spin-Peierls

Cite

@article{arxiv.cond-mat/9711047,
  title  = {Observation of three-magnon light scattering in CuGeO_3},
  author = {G. Els and P. H. M. van Loosdrecht and P. Lemmens and H. Vonberg and G. Güntherodt and G. S. Uhrig and O. Fujita and J. Akimitsu and G. Dhalenne and A. Revcolevschi},
  journal= {arXiv preprint arXiv:cond-mat/9711047},
  year   = {2016}
}

Comments

RevTeX, 4 pages, 3 eps figures, Phys. Rev. Lett. in press

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