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

H. C. Hsu; W. L. Lee; Jiunn-Yuan Lin; H. L. Liu; F. C. Chou

doi:10.1103/PhysRevB.81.212407

Disrupted long-range spin-spiral ordering and electric polarization in the Zn-substituted quantum helimagnet LiCu_2-x Zn_xO₂

H. C. Hsu, W. L. Lee, Jiunn-Yuan Lin, H. L. Liu, F. C. Chou

Institute of Physics

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

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 language	English
Article number	212407
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	81
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.81.212407
State	Published - 18 Jun 2010

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abstract = "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.",

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AU - Hsu, H. C.

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AU - Lin, Jiunn-Yuan

AU - Liu, H. L.

AU - Chou, F. C.

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N2 - 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.

AB - 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.

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Disrupted long-range spin-spiral ordering and electric polarization in the Zn-substituted quantum helimagnet LiCu_2-x Zn_xO₂

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