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

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

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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