Direct Evidence for Multiferroic Magnetoelectric Coupling in 0.9BiFeO3-0.1BaTiO3

Abstract

Magnetic, dielectric and calorimetric studies on 0.9BiFeO3-0.1BaTiO3 indicate strong magnetoelectric coupling. XRD studies reveal a very remarkable change in the rhombohedral distortion angle and a significant shift in the atomic positions at the magnetic Tc due to an isostructural phase transition. The calculated polarization using Rietveld refined atomic positions scales linearly with magnetization. Our results provide the first unambiguous evidence for magnetoelectric coupling of intrinsic multiferroic origin in a BiFeO3 based system.

14 pages including 5 figures (Accepted in PRL)

References in corpus (4)

• Magnetodielectric effect without multiferroic coupling
• Room temperature coexistence of large electric polarization and magnetic order in BiFeO3 single crystals
• Electric-field-induced spin-flop in BiFeO3 single crystals at room-temperature
• Substantial magneto-electric coupling near room temperature in Bi2Fe4O9

Cited by in corpus (18)

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• Effect of Structural Transition on Magnetic and Dielectric Properties of La and Mn co-substituted BiFeO3 Ceramics
• Effect of Rhombohedral to Orthorhombic Transition on Magnetic and Dielectric Properties of La and Ti co-substituted BiFeO3
• Evidence for two spin-glass transitions with magnetoelastic and magnetoelectric couplings in the multiferroic (Bi${}_{1-x}$Ba${}_x$)(Fe${}_{1-x}$Ti${}_x$)O${}_3$ system
• Ferroelectricity of Neel-type magnetic domain walls
• Robust Bain distortion in the premartensite phase of platinum substituted Ni2MnGa magnetic shape memory alloy
• Magnetic field driven enhanced ferroelectric switching in self-grown ferroelectric-ferromagnetic composite in the BiFeO3-BaTiO3 multiferroic alloy system
• Frequency dependence of dielectric anomaly around Neel temperature in bilayer manganite Pr(Sr0.1Ca0.9)2Mn2O7
• Modifications in the frustrated magnetism, oxidation state of Co and magnetoelectric coupling effects induced by a partial replacement of Ca by Gd in the spin chain compound Ca3Co2O6
• Engineering room-temperature multiferroicity in Bi and Fe codoped BaTiO3
• Hexagonal Sr0.6Ba0.4MnO3: Spin and Dipole Coupling via Local Structure
• Investigation of New Lead- free (1-x)BaTiO3-xBi(Mg1/2Zr1/2)O3 Solid Solution with Morphotropic Phase Boundary
• Evidence for pressure induced polarization rotation, octahedral tilting and reentrant ferroelectric phase in tetragonal (Pb0.5Bi0.5)(Ti0.5Fe0.5)O3
• Discovery of an isostructural phase transition within orthorhombic phase field of CaTiO3
• Magneto-dielectric coupling and non-ergodic electrical behaviour in hexagonal Sr0.6Ba0.4MnO3 via local strain driven magnetic ordering
• Effect of Structural Transition on Magnetic Properties of Ca and Mn co-substituted BiFeO3 Ceramics
• Novel dielectric anomalies due to spin-chains above and below Neel temperature in Ca3Co2O6
• Extraordinary Tunability of the Superexchange Interactions in Nanoparticles of the Multiferroic 0.50BiFeO3-0.50PbTiO3