Intrinsic defects in multiferroic BiFeO3 and their effect on magnetism
نویسندگان
چکیده
منابع مشابه
Magnetization Reversal by Out-of-plane Voltage in BiFeO3-based Multiferroic Heterostructures.
Voltage controlled 180° magnetization reversal has been achieved in BiFeO3-based multiferroic heterostructures, which is promising for the future development of low-power spintronic devices. However, all existing reports involve the use of an in-plane voltage that is unfavorable for practical device applications. Here, we investigate, using phase-field simulations, the out-of-plane (i.e., perpe...
متن کاملThe role of SrRuO3 bottom layer in strain relaxation of BiFeO3 thin films deposited on lattice mismatched substrates
Articles you may be interested in Role of defects in BiFeO3 multiferroic films and their local electronic structure by x-ray absorption spectroscopy High symmetric SrRuO3 (001) thin films: Perfectly lattice-matched electrodes for multiferroic BiFeO3
متن کاملEffect of strain on voltage-controlled magnetism in BiFeO3-based heterostructures
Voltage-modulated magnetism in magnetic/BiFeO3 heterostructures can be driven by a combination of the intrinsic ferroelectric-antiferromagnetic coupling in BiFeO3 and the antiferromagnetic-ferromagnetic exchange interaction across the heterointerface. However, ferroelectric BiFeO3 film is also ferroelastic, thus it is possible to generate voltage-induced strain in BiFeO3 that could be applied o...
متن کاملA novel perovskite oxide chemically designed to show multiferroic phase boundary with room-temperature magnetoelectricity
There is a growing activity in the search of novel single-phase multiferroics that could finally provide distinctive magnetoelectric responses at room temperature, for they would enable a range of potentially disruptive technologies, making use of the ability of controlling polarization with a magnetic field or magnetism with an electric one (for example, voltage-tunable spintronic devices, unc...
متن کاملTheory of spin-orbit enhanced electric-field control of magnetism in multiferroic BiFeO3.
We present a microscopic theory that shows the importance of spin-orbit coupling in perovskite compounds with heavy ions. In BiFeO3 (BFO) the spin-orbit coupling at the bismuth ion sites results in a special kind of magnetic anisotropy that is linear in the applied E field. This interaction can convert the cycloid ground state into a homogeneous antiferromagnet, with a weak ferromagnetic moment...
متن کامل