Impurity-doping induced ferroelectricity in frustrated antiferromagnet CuFeO2

Abstract

Dielectric responses have been investigated on the triangular-lattice antiferromagnet CuFeO2 and its site-diluted analogs CuFe1-xAlxO2 (x=0.01 and 0.02) with and without application of magnetic field. We have found a ferroelectric behavior at zero magnetic field for x=0.02. At any doping level, the onset field of the ferroelectricity always coincides with that of the noncollinear magnetic structure while the transition field dramatically decreases to zero field with Al doping. The results imply the further possibility of producing the ferroelectricity by modifying the frustrated spin structure in terms of site-doping and external magnetic field.

4 pages, 4 figures

References in corpus (3)

• Spin current and magneto-electric effect in non-collinear magnets
• Magnetically driven ferroelectric order in Ni${}_3$V${}_2$O${}_8$
• Ferroelectric polarization flop in a frustrated magnet MnWO${}_4$ induced by magnetic fields

Cited by in corpus (42)

• Multiferroicity, The coupling between magnetic and polarization
• Spin-driven ferroelectricity and possible antiferroelectricity in triangular lattice antiferromagnets ACrO2 (A = Cu, Ag, Li, or Na)
• Type-II multiferroic Hf${}_2$VC${}_2$F${}_2$ MXene monolayer with high transition temperature
• General Theory for the Ferroelectric Polarization Induced by Spin-Spiral Order
• Signature of magnon Nernst effect in an antiferromagnetic insulator
• Canted-spin-caused electric dipoles: a local symmetry theory
• Electronic Ferroelectricity and Frustration
• Magnetic Interaction in the Geometrically Frustrated Triangular Lattice Antiferromagnet $\mathrm{CuFe}{\mathrm{O}}_2$
• Electric Polarization Induced by a Proper Helical Magnetic Ordering in a Delafossite Multiferroic CuFe1-xAlxO2
• Quantum Magnetism in Minerals
• Unconventional aspects of electronic transport in delafossite oxides
• Diagonal magnetoelectric susceptibility and effect of Fe-doping in a polar ferrimagnet Mn2Mo3O8
• Robust Ferroelectric State in Multiferroic Mn${}_{1-x}$Zn${}_x$WO${}_4$
• Multicritical end-point of the first-order ferromagnetic transition in colossal magnetoresistive manganites
• Electromagnons in the spin collinear state of a triangular lattice antiferromagnet
• Magnetic excitations in the geometric frustrated multiferroic CuCrO${}_2$
• Mapping the B,T phase diagram of frustrated metamagnet CuFeO2
• Orbitally induced hierarchy of exchange interactions in zigzag antiferromagnetic state of honeycomb silver delafossite Ag3Co2SbO6
• Magnetoelastic coupling in triangular lattice antiferromagnet CuCrS2
• Magnetic digital flop of ferroelectric domain with fixed spin chirality in a triangular lattice helimagnet
• Magnons and electromagnons in a spin-lattice-coupled frustrated magnet CuFeO2 as seen via inelastic neutron scattering
• High-field recovery of the undistorted triangular lattice in the frustrated metamagnet CuFeO2
• Identification of microscopic spin-polarization coupling in the ferroelectric phase of a magnetoelectric multiferroic CuFe1-xAlxO2
• Magnetic and multiferroic phases of single-crystalline Mn${}_{0.85}$Co${}_{0.15}$WO${}_4$
• Long-range magnetic order and spin-lattice coupling in the delafossite CuFeO2
• Mechanisms and origin of multiferroicity
• Non-Collinear Magnetic Phases of a Triangular-Lattice Antiferromagnet and Doped CuFeO${}_2$
• The Collinear Magnetic Phases of the Geometrically-Frustrated Antiferromagnet CuFeO${}_2$: The Importance of Stacking
• Magnetoelectric interactions in polycrystalline multiferroic antiferromagnets CuFe(1-x)RhxO2 (x=0.00 and x=0.05)
• Spin-Wave Instabilities and Non-Collinear Magnetic Phases of a Geometrically-Frustrated Triangular-Lattice Antiferromagnet
• Control of ferroelectric polarization via uniaxial pressure in the spin-lattice-coupled multiferroic CuFe1-xGaxO2
• Spin-Wave Spectrum in `Single-Domain' Magnetic Ground State of Triangular Lattice Antiferromagnet CuFeO2
• Low-temperature heat transport of CuFe${}_{1-x}$Ga${}_x$O${}_2$ ($x=$ 0--0.12) single crystals
• The complex multiferroic phase diagram of Mn${}_{1-x}$Co${}_x$WO${}_4$
• Magnetic ordering and ferroelectricity in multiferroic 2H-AgFeO2: Comparison between hexagonal and rhombohedral polytypes
• Biquadratic antisymmetric exchange and the magnetic phase diagram of magnetoelectric CuFeO${}_2$
• Nonlocal Landau theory of the magnetic phase diagram of highly frustrated magnetoelectric CuFeO${}_2$
• Critical Anisotropies of a Geometrically-Frustrated Triangular-Lattice Antiferromagnet
• Magnetic field-induced spontaneous polarization reversal in multiferroic Mn${}_{0.85}$Co${}_{0.15}$WO${}_4$
• Anisotropic magnetic field responses of ferroelectric polarization in a trigonal multiferroic CuFe1-xAlxO2 (x=0.015)
• A semiclassical treatment of spinor topological effects in driven, inhomogeneous insulators under external electromagnetic fields
• Rich magnetoelectric phase diagrams of multiferroic single-crystal alpha-NaFeO2