Journal ArticleDOI
Electric polarization rotation in a hexaferrite with long-wavelength magnetic structures.
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TLDR
By applying magnetic fields (B) in a hexaferrite having magnetic order above room temperature (RT), the system undergoes successive metamagnetic transitions, and shows concomitant ferroelectric order in some of the B-induced phases with long-wavelength magnetic structures.Abstract:
We report on the control of electric polarization (P) by using magnetic fields (B) in a hexaferrite having magnetic order above room temperature (RT). The material investigated is hexagonal Ba0.5Sr1.5Zn2Fe12O22, which is a nonferroelectric helimagnetic insulator in the zero-field ground state. By applying B, the system undergoes successive metamagnetic transitions, and shows concomitant ferroelectric order in some of the B-induced phases with long-wavelength magnetic structures. The magnetoelectrically induced P can be rotated 360 degrees by external B. This opens up the potential for not only RT magnetoelectric devices but also devices based on the magnetically controlled electro-optical response.read more
Citations
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Journal ArticleDOI
Multiferroic and magnetoelectric materials
TL;DR: A ferroelectric crystal exhibits a stable and switchable electrical polarization that is manifested in the form of cooperative atomic displacements that arises through the quantum mechanical phenomenon of exchange.
Journal ArticleDOI
Multiferroics: a magnetic twist for ferroelectricity
TL;DR: It is found that even a weak magnetoelectric interaction can lead to spectacular cross-coupling effects when it induces electric polarization in a magnetically ordered state.
Journal ArticleDOI
Hexagonal ferrites: A review of the synthesis, properties and applications of hexaferrite ceramics
TL;DR: The most important members of the hexaferrite family are shown below, where Me = a small 2+ ion such as cobalt, nickel, or zinc, and Ba can be substituted by Sr: • M-type ferrites, such as BaFe12O19 (BaM or barium ferrite), SrFe 12O19(SrM or strontium ferite), and cobalt-titanium substituted M ferrite, Sr- or BaFe 12−2xCoxTixO19, or CoTiM as discussed by the authors.
Journal ArticleDOI
Multiferroicity: the coupling between magnetic and polarization orders
TL;DR: In this article, the authors highlight the physical concepts of multiferroicity and the current challenges to integrate the magnetism and ferroelectricity into a single-phase system and summarize various strategies used to combine the two types of order.
Journal ArticleDOI
Electrical control of antiferromagnetic domains in multiferroic BiFeO3 films at room temperature.
T. Zhao,T. Zhao,Andreas Scholl,F. Zavaliche,Kunwoo Lee,M. Barry,A. Doran,M. P. Cruz,M. P. Cruz,Ying-Hao Chu,Claude Ederer,Nicola A. Spaldin,R. R. Das,D. M. Kim,Seung Hyub Baek,Chang-Beom Eom,Ramamoorthy Ramesh +16 more
TL;DR: This work demonstrates the first observation of electrical control of antiferromagnetic domain structure in a single-phase multiferroic material at room temperature with high resolution images, indicating a strong coupling between the two types of order.
References
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Journal ArticleDOI
Epitaxial BiFeO3 multiferroic thin film heterostructures.
Jian Wang,Jeffrey B. Neaton,Haimei Zheng,Valanoor Nagarajan,Satishchandra Ogale,B. T. Liu,Dwight Viehland,V. Vaithyanathan,Darrell G. Schlom,Umesh V. Waghmare,Nicola A. Spaldin,Karin M. Rabe,Manfred Wuttig,Ramamoorthy Ramesh +13 more
TL;DR: Enhanced polarization and related properties in heteroepitaxially constrained thin films of the ferroelectromagnet, BiFeO3, and combined functional responses in thin film form present an opportunity to create and implement thin film devices that actively couple the magnetic and ferroelectric order parameters.
Journal ArticleDOI
Magnetic control of ferroelectric polarization
Tsuyoshi Kimura,Tsuyoshi Kimura,Takeshi Goto,Hiroshi Shintani,Kyoko Ishizaka,Taka-hisa Arima,Yoshinori Tokura +6 more
TL;DR: The discovery of ferroelectricity in a perovskite manganite, TbMnO3, where the effect of spin frustration causes sinusoidal antiferromagnetic ordering and gigantic magnetoelectric and magnetocapacitance effects are found.
Journal ArticleDOI
Electric polarization reversal and memory in a multiferroic material induced by magnetic fields.
TL;DR: A striking interplay between ferroelectricity and magnetism in the multiferroic TbMn2O5 is reported, demonstrated by a highly reproducible electric polarization reversal and permanent polarization imprint that are both actuated by an applied magnetic field.
Journal ArticleDOI
The Past, Present, and Future of Ferrites
TL;DR: In this article, a comprehensive survey of the historical development of the science and technology of ferrite materials as well as applications of the ferrites is presented, with a forecast of the future of ferrites in terms of their chemistry.
Journal ArticleDOI
Ferroelectricity and Giant Magnetocapacitance in Perovskite Rare-Earth Manganites
TL;DR: The relationships among magnetism, lattice modulation, and dielectric properties have been investigated for RMnO3 and it was found that the IC-C transition is accompanied by a ferroelectric transition, associated with a lattices modulation in the C phase.