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Publication Detail
Inelastic neutron scattering study of the spin-gap behavior in Cu 2Te2O5Br2
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Conference Proceeding
  • Authors:
    Crowe SJ, Majumdar S, Lees MR, Paul DMK, Adroja DT, Levett SJ
  • Publication date:
  • Pagination:
    1219, 1221
  • Journal:
    Physica B: Condensed Matter
  • Volume:
  • Issue:
    SPEC. ISS.
  • Status:
  • Print ISSN:
We present direct observational evidence of a quasi-spin-gapped phase in the spin-tetrahedral system Cu2Te2O5Br2 using inelastic neutron scattering. Our data show a magnetic peak centred at 4.20±0.05 meV, which falls in intensity with increasing temperature in consistence with a thermal depopulation of spin from a non-magnetic ground state to an excited state. However, the magnetic peak also shows a dispersive character, which is associated with the magnetic order in this system. © 2005 Elsevier B.V. All rights reserved.
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