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- W1976656906 abstract "We report the observation of magnetoelectric and magnetodielectric effects at different temperatures in Mn-substituted yttrium orthoferrite, ${mathrm{YFe}}_{1ensuremath{-}x}{mathrm{Mn}}_{x}{mathrm{O}}_{3}(0.1ensuremath{le}xensuremath{le}0.40)$. Substitution of Mn in antiferromagnetic ${mathrm{YFeO}}_{3}({T}_{N}=640text{ }text{ }mathrm{K})$ induces a first-order spin-reorientation transition at a temperature, ${T}_{mathrm{SR}}$, which increases with $x$ whereas the N'eel temperature (${T}_{N}$) decreases. While the magnetodielectric effect occurs at ${T}_{mathrm{SR}}$ and ${T}_{N}$, the ferroelectricity appears rather at low temperatures. The origin of magnetodielectric effect is attributed to spin-phonon coupling as evidenced from the temperature dependence of Raman phonon modes. The large magnetocapacitance (18% at 50 kOe) near ${T}_{mathrm{SR}}=320text{ }text{ }mathrm{K}$ and high ferroelectric transition temperature ($ensuremath{sim}115text{ }text{ }mathrm{K}$) observed for $x=0.4$ suggest routes to enhance magnetoelectric effect near room temperature for practical applications." @default.
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- W1976656906 date "2011-09-19" @default.
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- W1976656906 title "Spin-Reorientation, Ferroelectricity, and Magnetodielectric Effect in<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mi>YFe</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Mn</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mi mathvariant=normal>O</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:mo stretchy=false>(</mml:mo><mml:mn>0.1</mml:mn><mml:mo mathvariant=bold>≤</mml:mo><mml:mi>x</…" @default.
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- W1976656906 doi "https://doi.org/10.1103/physrevlett.107.137202" @default.
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