Cycloidal spin order in the a-axis polarized ferroelectric phase of orthorhombic perovskite manganite

Y. Yamasaki; H. Sagayama; N. Abe; T. Arima; K. Sasai; M. Matsuura; K. Hirota; D. Okuyama; Y. Noda; Y. Tokura

doi:10.1103/PhysRevLett.101.097204

Cycloidal spin order in the a-axis polarized ferroelectric phase of orthorhombic perovskite manganite

Y. Yamasaki, H. Sagayama, N. Abe, T. Arima, K. Sasai, M. Matsuura, K. Hirota, D. Okuyama, Y. Noda, Y. Tokura

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

67 Citations (Scopus)

Abstract

The ferroelectric state in an orthorhombic perovskite RMnO3 (R=Gd0.7Tb0.3) was proved by neutron scattering studies to show the cycloidal spin state with the ab-spiral plane and the spin-helicity dependent polarization vector along the a axis, sharing the microscopic origin (inverse Dzyaloshinskii-Moriya interaction) with the more widely observed P||c state (e.g., for R=Tb and Dy) with the bc-spiral plane. The magnetic-field induced polarization flop from P||c to P||a as well known for RMnO3 is thus assigned to the orthogonal flop of the spin spiral plane from bc to ab.

Original language	English
Article number	097204
Journal	Physical Review Letters
Volume	101
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.101.097204
Publication status	Published - 2008 Aug 29
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Cycloidal spin order in the a-axis polarized ferroelectric phase of orthorhombic perovskite manganite",

abstract = "The ferroelectric state in an orthorhombic perovskite RMnO3 (R=Gd0.7Tb0.3) was proved by neutron scattering studies to show the cycloidal spin state with the ab-spiral plane and the spin-helicity dependent polarization vector along the a axis, sharing the microscopic origin (inverse Dzyaloshinskii-Moriya interaction) with the more widely observed P||c state (e.g., for R=Tb and Dy) with the bc-spiral plane. The magnetic-field induced polarization flop from P||c to P||a as well known for RMnO3 is thus assigned to the orthogonal flop of the spin spiral plane from bc to ab.",

author = "Y. Yamasaki and H. Sagayama and N. Abe and T. Arima and K. Sasai and M. Matsuura and K. Hirota and D. Okuyama and Y. Noda and Y. Tokura",

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T1 - Cycloidal spin order in the a-axis polarized ferroelectric phase of orthorhombic perovskite manganite

AU - Yamasaki, Y.

AU - Sagayama, H.

AU - Abe, N.

AU - Arima, T.

AU - Sasai, K.

AU - Matsuura, M.

AU - Hirota, K.

AU - Okuyama, D.

AU - Noda, Y.

AU - Tokura, Y.

PY - 2008/8/29

Y1 - 2008/8/29

N2 - The ferroelectric state in an orthorhombic perovskite RMnO3 (R=Gd0.7Tb0.3) was proved by neutron scattering studies to show the cycloidal spin state with the ab-spiral plane and the spin-helicity dependent polarization vector along the a axis, sharing the microscopic origin (inverse Dzyaloshinskii-Moriya interaction) with the more widely observed P||c state (e.g., for R=Tb and Dy) with the bc-spiral plane. The magnetic-field induced polarization flop from P||c to P||a as well known for RMnO3 is thus assigned to the orthogonal flop of the spin spiral plane from bc to ab.

AB - The ferroelectric state in an orthorhombic perovskite RMnO3 (R=Gd0.7Tb0.3) was proved by neutron scattering studies to show the cycloidal spin state with the ab-spiral plane and the spin-helicity dependent polarization vector along the a axis, sharing the microscopic origin (inverse Dzyaloshinskii-Moriya interaction) with the more widely observed P||c state (e.g., for R=Tb and Dy) with the bc-spiral plane. The magnetic-field induced polarization flop from P||c to P||a as well known for RMnO3 is thus assigned to the orthogonal flop of the spin spiral plane from bc to ab.

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