Disrupted long-range spin-spiral ordering and electric polarization in the Zn-substituted quantum helimagnet LiCu2-x ZnxO2

H. C. Hsu, W. L. Lee, J. Y. Lin, H. L. Liu, F. C. Chou

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Long-range spin-spiral ordering in quantum quasi-two-dimensional helimagnet LiCu2O2 is destroyed by ∼8% Zn2+ substitution and a magnetic anomaly near ∼14 K of different character emerges. Zn substitution may have introduced either a magnetic ground state of spin glass in nature, antiferromagnetic ordering with complex easy-plane anisotropy, or a gapped phase which is phase separated and proportional to the Zn substitution level on a short-range ordered background. The magnetic ground state is modified at the same time that the electric polarization disappears.

Original languageEnglish
Article number212407
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number21
Publication statusPublished - 2010 Jun 18


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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