Colossal magnetodielectric effects in DyMn₂O₅

TY - JOUR

T1 - Colossal magnetodielectric effects in DyMn2O5

AU - Hur, N.

AU - Park, S.

AU - Sharma, P. A.

AU - Guha, S.

AU - Cheong, S. W.

PY - 2004/9/3

Y1 - 2004/9/3

N2 - The magnetic field dependence of the electric polarization and dielectric constant in (Tb, Dy, Ho)Mn2O5, where magnetic and ferroelectric transitions are intimately coupled were investigated. A large change of the dielectric constant with magnetic field, particularly in DyMn 2O5, associated with an unusual commensurate- incommensurate magnetic transition was observed. This effect occurred due to the high sensitivity of the incommensurate state to external perturbation. The results reveal that the DyMn2O5 system is magnetically/structurally soft.

AB - The magnetic field dependence of the electric polarization and dielectric constant in (Tb, Dy, Ho)Mn2O5, where magnetic and ferroelectric transitions are intimately coupled were investigated. A large change of the dielectric constant with magnetic field, particularly in DyMn 2O5, associated with an unusual commensurate- incommensurate magnetic transition was observed. This effect occurred due to the high sensitivity of the incommensurate state to external perturbation. The results reveal that the DyMn2O5 system is magnetically/structurally soft.

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U2 - https://doi.org/10.1103/PhysRevLett.93.107207

DO - https://doi.org/10.1103/PhysRevLett.93.107207

M3 - Article

C2 - 15447448

VL - 93

SP - 107207-1-107207-4

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

IS - 10

M1 - 107207

ER -