Control of ferroelectric polarization in multiferroic YMn2O 5 by external pressure

R. P. Chaudhury; C. R. Dela Cruz; B. Lorenz; Y. Y. Sun; C. W. Chu; S. Park; S. W. Cheong

doi:10.1088/1742-6596/150/4/042013

Control of ferroelectric polarization in multiferroic YMn₂O ₅ by external pressure

R. P. Chaudhury, C. R. Dela Cruz, B. Lorenz, Y. Y. Sun, C. W. Chu, S. Park, S. W. Cheong

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Abstract

We show that the application of external hydrostatic pressure can reverse the ferroelectric polarization of multiferroic YMn₂O₅ at low temperatures. This unique effect is explained by the peculiarities of the highly frustrated magnetic order that is typical for all RMn₂O ₅ (R=rare earth) in the commensurate and incommensurate phases. Our results indicate that the pressure changes the relative phase of adjacent antiferromagnetic spin chains propagating along the orthorhombic a-axis. With further compression the incommensurate phase transforms into the commensurate phase with the highest ferroelectric polarization.

Original language	English
Article number	042013
Journal	Journal of Physics: Conference Series
Volume	150
Issue number	4
DOIs	https://doi.org/10.1088/1742-6596/150/4/042013
State	Published - 2009

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title = "Control of ferroelectric polarization in multiferroic YMn2O 5 by external pressure",

abstract = "We show that the application of external hydrostatic pressure can reverse the ferroelectric polarization of multiferroic YMn2O5 at low temperatures. This unique effect is explained by the peculiarities of the highly frustrated magnetic order that is typical for all RMn2O 5 (R=rare earth) in the commensurate and incommensurate phases. Our results indicate that the pressure changes the relative phase of adjacent antiferromagnetic spin chains propagating along the orthorhombic a-axis. With further compression the incommensurate phase transforms into the commensurate phase with the highest ferroelectric polarization.",

author = "Chaudhury, {R. P.} and {Dela Cruz}, {C. R.} and B. Lorenz and Sun, {Y. Y.} and Chu, {C. W.} and S. Park and Cheong, {S. W.}",

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T1 - Control of ferroelectric polarization in multiferroic YMn2O 5 by external pressure

AU - Chaudhury, R. P.

AU - Dela Cruz, C. R.

AU - Lorenz, B.

AU - Sun, Y. Y.

AU - Chu, C. W.

AU - Park, S.

AU - Cheong, S. W.

PY - 2009

Y1 - 2009

N2 - We show that the application of external hydrostatic pressure can reverse the ferroelectric polarization of multiferroic YMn2O5 at low temperatures. This unique effect is explained by the peculiarities of the highly frustrated magnetic order that is typical for all RMn2O 5 (R=rare earth) in the commensurate and incommensurate phases. Our results indicate that the pressure changes the relative phase of adjacent antiferromagnetic spin chains propagating along the orthorhombic a-axis. With further compression the incommensurate phase transforms into the commensurate phase with the highest ferroelectric polarization.

AB - We show that the application of external hydrostatic pressure can reverse the ferroelectric polarization of multiferroic YMn2O5 at low temperatures. This unique effect is explained by the peculiarities of the highly frustrated magnetic order that is typical for all RMn2O 5 (R=rare earth) in the commensurate and incommensurate phases. Our results indicate that the pressure changes the relative phase of adjacent antiferromagnetic spin chains propagating along the orthorhombic a-axis. With further compression the incommensurate phase transforms into the commensurate phase with the highest ferroelectric polarization.

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U2 - 10.1088/1742-6596/150/4/042013

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SN - 1742-6588

VL - 150

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 4

M1 - 042013

ER -

Control of ferroelectric polarization in multiferroic YMn₂O ₅ by external pressure

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