TY - JOUR
T1 - Multiferroicity in orthorhombic RMn O3 (R=Dy, Tb, and Gd) under high pressure
AU - Aoyama, Takuya
AU - Iyama, Ayato
AU - Shimizu, Katsuya
AU - Kimura, Tsuyoshi
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/2/18
Y1 - 2015/2/18
N2 - The hydrostatic pressure effect on multiferroic properties of rare-earth manganites RMnO3 (R=Dy,Tb, and Gd) with the Pbnm orthorhombic structure was investigated by using a diamond anvil cell. Under high pressure, all of these manganites were found to exhibit ferroelectricity in which spontaneous polarization (≈100μC/cm2) develops along the a axis. The application of a magnetic field B along the a axis to the high-pressure ferroelectric phase causes a drastic change in the electric polarization P. Especially in GdMnO3, the B-induced change in P reached ΔP(B)=1.3μC/cm2. A possible origin of the observed R-dependent pressure effect is discussed.
AB - The hydrostatic pressure effect on multiferroic properties of rare-earth manganites RMnO3 (R=Dy,Tb, and Gd) with the Pbnm orthorhombic structure was investigated by using a diamond anvil cell. Under high pressure, all of these manganites were found to exhibit ferroelectricity in which spontaneous polarization (≈100μC/cm2) develops along the a axis. The application of a magnetic field B along the a axis to the high-pressure ferroelectric phase causes a drastic change in the electric polarization P. Especially in GdMnO3, the B-induced change in P reached ΔP(B)=1.3μC/cm2. A possible origin of the observed R-dependent pressure effect is discussed.
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U2 - 10.1103/PhysRevB.91.081107
DO - 10.1103/PhysRevB.91.081107
M3 - Article
AN - SCOPUS:84923260531
SN - 1098-0121
VL - 91
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 8
M1 - 081107
ER -