Dopant-bound spinons in Cu1-cusive Greek chiZncusive Greek chiGeO3

G. Els, G. S. Uhrig, P. Lemmens, H. Vonberg, P. H.M. Van Loosdrecht, G. Güntherodt, O. Fujita, J. Akimitsu, G. Dhalenne, A. Revcolevschi

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Abstract

Polarized inelastic light scattering experiments on Cu1-cusive Greek chiZncusive Greek chiGeO3 (0 ≤ cusive Greek chi ≤ 0.045) single crystals show for cusive Greek chi ≠ 0 a new distinct mode at nearly half the energy of the singlet response below the spin-Peierls transition. The temperature, magnetic field, polarization, and doping dependences of this mode are similar to those of the singlet bound state. The data are interpreted in terms of a spinon-assisted light scattering process. Position and form of the peak provide strong evidence for the presence of dopant-bound spinons in Cu1-cusive Greek chiZncusive Greek chiGeO3.

Original languageEnglish
Pages (from-to)463-468
Number of pages6
JournalEurophysics Letters
Volume43
Issue number4
DOIs
Publication statusPublished - Aug 15 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Els, G., Uhrig, G. S., Lemmens, P., Vonberg, H., Van Loosdrecht, P. H. M., Güntherodt, G., Fujita, O., Akimitsu, J., Dhalenne, G., & Revcolevschi, A. (1998). Dopant-bound spinons in Cu1-cusive Greek chiZncusive Greek chiGeO3. Europhysics Letters, 43(4), 463-468. https://doi.org/10.1209/epl/i1998-00382-3