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.
|Physical Review B - Condensed Matter and Materials Physics
|Published - 2010 Jun 18
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics