Realization of giant magnetoelectricity in helimagnets

Abstract

We show that low field magnetoelectric (ME) properties of helimagnets Ba0.5Sr1.5Zn2(Fe1-xAlx)12O22 can be efficiently tailored by Al-substitution level. As x increases, the critical magnetic field for switching electric polarization is systematically reduced from ~1 T down to ~1 mT, and the ME susceptibility is greatly enhanced to reach a giant value of 2.0 x 10^4 ps/m at an optimum x = 0.08. We find that control of nontrivial orbital moment in the octahedral Fe sites through the Al-substitution is crucial for fine tuning of magnetic anisotropy and obtaining the conspicuously improved ME characteristics.

References in corpus (6)

• 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
• Giant sharp magnetoelectric switching in multiferroic epitaxial La_{0.67}Sr_{0.33}MnO_3 on BaTiO_3
• Low-magnetic-field control of dielectric constant at room temperature realized in Ba0.5Sr1.5Zn2Fe12O22

Cited by in corpus (22)

• Multiferroic materials and magnetoelectric physics: symmetry, entanglement, excitation, and topology
• Electric field control of nonvolatile four-state magnetization at room temperature
• Structure and spin dynamics of multiferroric BiFeO${}_3$
• Gigantic magnetic field polarization and magnetoelectric coupling in a ferrimagnetic oxide CaBaCo4O7
• Electrical control of large magnetization reversal in a helimagnet
• Successive magnetic field-induced transitions and colossal magnetoelectric effect in Ni${}_3$TeO${}_6$
• Magnetization-polarization cross-control near room temperature in hexaferrite single crystals
• Low magnetic field reversal of electric polarization in a Y-type hexaferrite
• Contrasting magnetoelectric behavior in multiferroic hexaferrites as understood by crystal symmetry analyses
• Electric polarization of magnetic textures: new horizons of micromagnetism
• Magnetoelectric Response in Multiferroic SrFe12O19 Ceramics
• Spin flexoelectricity and chiral spin structures in magnetic films
• Coupled multiferroic domain switching in the canted conical spin spiral system Mn${}_2$GeO${}_4$
• Origin of nonlinear magnetoelectric response in rare-earth orthoferrite perovskite oxides
• Braiding Majorana Zero Mode in An Electrically Controllable Way
• Broadband transverse susceptibility in multiferroic Y-type hexaferrite Ba0.5Sr1.5Zn2Fe12O22
• Magnetic fan structures in Ba${}_{0.5}$Sr${}_{1.5}$Zn${}_2$Fe${}_{12}$O${}_{22}$ hexaferrite revealed by resonant soft X-ray diffraction
• 4D visualization of the photoexcited coherent magnon by an X-ray free electron laser
• Optimization of noncollinear magnetic ordering temperature in Y-type hexaferrite by machine learning
• Evidence for Conical Magnetic Structure in M-type BaFe12O19 Hexaferrite: A Combined Single-Crystal XMCD and Neutron Diffraction Study
• Enhanced Ferroelectricity and Spin Current Waves in M-Type Barium Hexaferrite
• Antiferroelectric and Magnetodielectric Coupling Response of La0.2Sr0.7Fe12O19 Ceramics