Magnetization-polarization cross-control near room temperature in hexaferrite single crystals

Abstract

Mutual control of the electricity and magnetism in terms of magnetic (H) and electric (E) fields, the magnetoelectric (ME) effect, offers versatile low power-consumption alternatives to current data storage, logic gate, and spintronic devices. Despite its importance, E-field control over magnetization (M) with significant magnitude was observed only at low temperatures. Here we have successfully stabilized a simultaneously ferrimagnetic and ferroelectric phase in a Y-type hexaferrite single crystal up to T=450K and demonstrated the reversal of large non-volatile M by E field close to room temperature. Manipulation of the magnetic domains by E field is directly visualized at room temperature by using magnetic force microscopy. The present achievement provides an important step towards the application of bulk ME multiferroics.

arXiv comment10 + 9 pages, 5 + 10 figures, Supplementary included

References in corpus (4)

• Giant directional dichroism of terahertz light in resonance with magnetic excitations of the multiferroic oxide BaCo${}_2$Ge${}_2$O${}_7$
• Realization of giant magnetoelectricity in helimagnets
• Electric field control of nonvolatile four-state magnetization at room temperature
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Cited by in corpus (9)

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• Prediction of Room Temperature Electric Field Reversal of Magnetization in the Family of $A_4{B}_3{\mathrm{O}}_9$ Layered Oxides
• Dielectric, magnetic, and magnetodielectric behaviors of BaFe12O19 hexaferrite modulated by Mn and Ti substitutions
• More bridging ligands activate direct exchange: the case of anisotropic Kitaev effective magnetic interactions