Title: Disrupted long-range spin-spiral ordering and electric polarization in the Zn-substituted quantum helimagnet LiCu(2-x)Zn(x)O(2)
Authors: Hsu, H. C.
Lee, W. L.
Lin, J. -Y.
Liu, H. L.
Chou, F. C.
Institute of Physics
Issue Date: 18-Jun-2010
Abstract: Long-range spin-spiral ordering in quantum quasi-two-dimensional helimagnet LiCu(2)O(2) is destroyed by similar to 8% Zn(2+) substitution and a magnetic anomaly near similar to 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.
URI: http://dx.doi.org/10.1103/PhysRevB.81.212407
ISSN: 1098-0121
DOI: 10.1103/PhysRevB.81.212407
Volume: 81
Issue: 21
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