Journal ArticleDOI
Structural and magnetic properties in Bi1−xRxFeO3 (x=0–1, R=La, Nd, Sm, Eu and Tb) polycrystalline ceramics
Yu-jie Zhang,Yu-jie Zhang,Hongguo Zhang,Jin-hua Yin,Jin-hua Yin,Hong-wei Zhang,Jinglan Chen,Wenquan Wang,Guangheng Wu +8 more
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TLDR
In this article, a series of rare-earth doped BiFeO3 samples, Bi1−xRxFe3 (x=0−1, R=La, Nd, Sm, Eu and Tb), were prepared for X-ray diffraction analysis.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 2010-08-01. It has received 106 citations till now. The article focuses on the topics: Magnetocrystalline anisotropy & Magnetization.read more
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Magnetic, Ferroelectric, and Magnetocapacitive Properties of Sonochemically Synthesized Sc-Doped BiFeO3 Nanoparticles
TL;DR: In this paper, the synthesis of undoped and Sc3+-doped BiFeO3 nanoparticles using the sonochemical technique was reported, where the substitution of Sc ions for Bi enhances the ferromagnetic as well as ferroelectric properties of this system.
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Structural, magnetic, and electrical properties of Gd-doped BiFeO 3 nanoparticles with reduced particle size
Gurmeet Singh Lotey,N. K. Verma +1 more
TL;DR: In this paper, the significant effects of size and Gd-doping on structural, electrical, and magnetic properties have been investigated, and the possible origin of enhancement in these properties has been explained on the basis of dopant and its concentration, phase purity, small particle, and grain size.
Journal ArticleDOI
Sol–gel synthesis of Nd-doped BiFeO3 multiferroic and its characterization
Dawei Wang,Dawei Wang,Meili Wang,Fengbin Liu,Yan Cui,Quanliang Zhao,Huajun Sun,Haibo Jin,Mao-Sheng Cao +8 more
TL;DR: In this paper, the influence of annealing temperature, time, Bi content and solvent on the crystal structure of BFO was studied and it was found that the magnetization was enhanced significantly with Nd 3 þ substitution, being attributed to the suppression of the spiral cycloidal magnetic structure.
Journal ArticleDOI
Effect of holmium substitution for the improvement of multiferroic properties of BiFeO3
Sangram K. Pradhan,J. Das,P.P. Rout,V. Mohanta,S.K. Das,S. Samantray,Diptiranjan Sahu,Jow-Lay Huang,Sarika Verma,B. K. Roul +9 more
TL;DR: In this paper, the multiferroic properties of Ho substituted BiFeO 3 (Bi 1− x Ho x FeO 3 ) ceramics were investigated and it was shown that Ho substitution at Bi site is likely to suppress the spiral spin modulation and at the same time increase the canting angle.
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Magnetic and dielectric properties of Eu-doped BiFeO3 nanoparticles by acetic acid-assisted sol-gel method
TL;DR: In this paper, a simple sol-gel method was used to synthesize BiFeO3 nanoparticles, having an average size of 13nm, which possess single phase up to 2% Eu doping at the Bi site.
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.
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Revival of the Magnetoelectric Effect
Abstract: Recent research activities on the linear magnetoelectric (ME) effect?induction of magnetization by an electric field or of polarization by a magnetic field?are reviewed. Beginning with a brief summary of the history of the ME effect since its prediction in 1894, the paper focuses on the present revival of the effect. Two major sources for 'large' ME effects are identified. (i) In composite materials the ME effect is generated as a product property of a magnetostrictive and a piezoelectric compound. A linear ME polarization is induced by a weak ac magnetic field oscillating in the presence of a strong dc bias field. The ME effect is large if the ME coefficient coupling the magnetic and electric fields is large. Experiments on sintered granular composites and on laminated layers of the constituents as well as theories on the interaction between the constituents are described. In the vicinity of electromechanical resonances a ME voltage coefficient of up to 90?V?cm?1?Oe?1 is achieved, which exceeds the ME response of single-phase compounds by 3?5 orders of magnitude. Microwave devices, sensors, transducers and heterogeneous read/write devices are among the suggested technical implementations of the composite ME effect. (ii) In multiferroics the internal magnetic and/or electric fields are enhanced by the presence of multiple long-range ordering. The ME effect is strong enough to trigger magnetic or electrical phase transitions. ME effects in multiferroics are thus 'large' if the corresponding contribution to the free energy is large. Clamped ME switching of electrical and magnetic domains, ferroelectric reorientation induced by applied magnetic fields and induction of ferromagnetic ordering in applied electric fields were observed. Mechanisms favouring multiferroicity are summarized, and multiferroics in reduced dimensions are discussed. In addition to composites and multiferroics, novel and exotic manifestations of ME behaviour are investigated. This includes (i) optical second harmonic generation as a tool to study magnetic, electrical and ME properties in one setup and with access to domain structures; (ii) ME effects in colossal magnetoresistive manganites, superconductors and phosphates of the LiMPO4 type; (iii) the concept of the toroidal moment as manifestation of a ME dipole moment; (iv) pronounced ME effects in photonic crystals with a possibility of electromagnetic unidirectionality. The review concludes with a summary and an outlook to the future development of magnetoelectrics research.
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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.
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Multiferroicity, The coupling between magnetic and polarization
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 orders.
Journal ArticleDOI
Room-temperature saturated ferroelectric polarization in BiFeO3 ceramics synthesized by rapid liquid phase sintering
TL;DR: In this article, a single-phased ferroelectromagnet BiFeO3 ceramics with high resistivity were synthesized by a rapid liquid phase sintering technique.