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High-pressure-induced spin-liquid phase of multiferroic YMnO(3)
- Authors
- Kozlenko, DP[Kozlenko, D. P.]; Mirebeau, I[Mirebeau, I.]; Park, JG[Park, J. -G.]; Goncharenko, IN[Goncharenko, I. N.]; Lee, S[Lee, S.]; Park, J[Park, Junghwan]; Savenko, BN[Savenko, B. N.]
- Issue Date
- Aug-2008
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW B, v.78, no.5
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW B
- Volume
- 78
- Number
- 5
- ISSN
- 1098-0121
- Abstract
- We investigated the magnetic structure and short-range spin correlations of multiferroic hexagonal manganite YMnO(3) by powder neutron diffraction at high pressures up to 6.7 GPa. High pressure induces a spin-liquid phase in multiferroic YMnO(3), coexisting with the suppressed long-range antiferromagnetic order. This spin-liquid phase exhibits a temperature dependence distinctively different from short-range spin correlations seen at ambient pressure. Its formation occurs through an in-plane Mn-O bond symmetrization and results in reduced magnetoelastic coupling at high pressures.
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