Matches in SemOpenAlex for { <https://semopenalex.org/work/W2019947872> ?p ?o ?g. }
- W2019947872 abstract "We refined the magnetic structure of a ferroelectric (FE) phase of multiferroic ${text{CuFe}}_{1ensuremath{-}x}{text{Ga}}_{x}{text{O}}_{2}$ with $x=0.035$ by complementary use of spherical neutron polarimetry and a four-circle neutron-diffraction measurement, revealing that the proper-screw-type magnetic structure in the ferroelectric phase has a finite ellipticity of $ensuremath{sim}0.9$. By means of polarized neutron-diffraction and in-situ pyroelectric measurements, we also investigated the quantitative relationship between the macroscopic ferroelectric polarization $(P)$ and the asymmetry in volume fractions with left-handed and right-handed helical magnetic order in ${text{CuFe}}_{1ensuremath{-}x}{text{Al}}_{x}{text{O}}_{2}$ with $x=0.0155$ and ${text{CuFe}}_{1ensuremath{-}x}{text{Ga}}_{x}{text{O}}_{2}$ with $x=0.035$. These measurements revealed that the substitution of a small amount of nonmagnetic ${text{Ga}}^{3+}$ or ${text{Al}}^{3+}$ ions does not significantly change the magnitude of the local ferroelectric polarization but does reduce the sensitivity of $P$ to the poling electric field $({E}_{p})$. This implies that the mobility of the magnetic domain walls, which is sensitive to magnetic defects due to nonmagnetic substitution, determines the sensitivity of $P$ to ${E}_{p}$ because of a one-to-one correspondence between the magnetic and ferroelectric domains." @default.
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- W2019947872 date "2009-06-16" @default.
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- W2019947872 title "Comprehensive study on ferroelectricity induced by a proper-screw-type magnetic ordering in multiferroic<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mtext>CuFeO</mml:mtext></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>: Nonmagnetic impurity effect on magnetic and ferroelectric order" @default.
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- W2019947872 doi "https://doi.org/10.1103/physrevb.79.214423" @default.
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