Observation of three-magnon light scattering in CuGeO_3

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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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.

Original languageEnglish
Pages (from-to)5138-5141
Number of pages4
JournalPhysical Review Letters
Issue number25
Publication statusPublished - Jan 1 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Els, G., Van Loosdrecht, P. H. M., Lemmens, P., Vonberg, H., Güntherodt, G., Uhrig, G. S., Fujita, O., Akimitsu, J., Dhalenne, G., & Revcolevschi, A. (1997). Observation of three-magnon light scattering in CuGeO_3. Physical Review Letters, 79(25), 5138-5141. https://doi.org/10.1103/PhysRevLett.79.5138