Rare earth magnetism and ferroelectricity in RMnO3

Abstract

Magnetic rare earths R have been proven to have a significant effect on the multiferroic properties of the orthorhombic manganites RMnO3. A re-examination of previous results from synchrotron based x-ray scattering experiments suggests that symmetric exchange striction between neighboring R and Mn ions may account for the enhancement of the ferroelectric polarization in DyMnO3 as well as the magnetic-field induced ferroelectricity in GdMnO3. In general, adding a second magnetic species to a multiferroic material may be a route to enhance its ferroelectric properties.

Contribution to ICM 2009; accepted for publication in Journal of Physics: Conference Series

References in corpus (8)

• Spin current and magneto-electric effect in non-collinear magnets
• Ferroelectricity in spiral magnets
• Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites
• Magnetic inversion symmetry breaking and ferroelectricity in TbMnO3
• Enhanced ferroelectric polarization by induced Dy spin-order in multiferroic DyMnO3
• Coupling of frustrated Ising spins to magnetic cycloid in multiferroic TbMnO3
• Commensurate Dy magnetic ordering associated with incommensurate lattice distortion in orthorhombic DyMnO3
• Magnetic-field induced effects on the electric polarization in RMnO3 (R = Dy, Gd)

Cited by in corpus (6)

• Recent Progress of Multiferroic Perovskite Manganites
• Femtoscale magnetically induced lattice distortions in multiferroic TbMnO3
• Magnetoelectric effect due to local noncentrosymmetry
• Ho and Fe magnetic ordering in multiferroic HoFe3(BO3)O4
• Enhancement of magnetodielectric coupling in 6H-perovskites Ba3RRu2O9 for heavier rare earth cations (R=Ho,Tb)
• Long range antiferromagnetic order of formally non-magnetic Eu${}^{3+}$ Van Vleck ions observed in multiferroic Eu${}_{1-x}$Y${}_x$MnO${}_3$