Multiferroic and magnetoelectric materials

  title={Multiferroic and magnetoelectric materials},
  author={Wilma Eerenstein and Neil D Mathur and J. F. Scott},
A ferroelectric crystal exhibits a stable and switchable electrical polarization that is manifested in the form of cooperative atomic displacements. A ferromagnetic crystal exhibits a stable and switchable magnetization that arises through the quantum mechanical phenomenon of exchange. There are very few ‘multiferroic’ materials that exhibit both of these properties, but the ‘magnetoelectric’ coupling of magnetic and electrical properties is a more general and widespread phenomenon. Although… 
The magnetoelectric domains and cross-field switching in multiferroic BiFeO3
BiFeO3 is an exciting multiferroic material because of its room temperature multiferrocity, excellent ferroelectric properties, and recently demonstrated electric control of antiferromagnetic
Magnetoelectric complex-oxide heterostructures
A short review of recent progress in the field of multiferroic thin films and heterostructures is given. We focus on the bismuth iron oxide system due to its desirable properties, namely high
Multiferroics: a magnetic twist for ferroelectricity.
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.
Electrically controlled magnetization switching in a multiferroic heterostructure
A demonstration of magnetization reversal via the application of electric field across a multiferroic heterostructure, consisting of a FeCoV ribbon bonded to a lead magnesium niobate-lead titanate
Polarization and magnetization dynamics of a field-driven multiferroic structure.
It is demonstrated that for material parameters corresponding to BaTiO(3)/Fe the polarization and the magnetization are controllable by external magnetic and electric fields, respectively.
Magnetoelectric interfaces and spin transport
  • J. Burton, E. Tsymbal
  • Materials Science
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2012
Emphasis is placed on how a subset of such interfaces, namely ferromagnet–ferroelectric heterostructures, display electronically mediated control of magnetism and, in particular, on how these effects manifest themselves as detectable spin-dependent transport phenomena.
Persistent multiferroicity without magnetoelectric effects in CuO
Multiferroicity and magnetoelectric effects in CuO have been investigated by measurements of magnetization, dielectric constant, and electric polarization with and without magnetic fields. Dielectric
Antiferromagnetic and Ferroelectric Phase Transitions and Instabilities in PFW-PT Multiferroic Solid Solution Characterized by Anelastic Measurement
Magnetic, electric and mechanical behaviors are strongly coupled, but only a few models are able to describe electro-magneto-mechanical coupling effects. In this work, multiferroic solid solutions


Magnetocapacitance effect in multiferroic BiMnO 3
We have investigated the structural, magnetic, and electric properties of ferromagnetic BiMnO 3 with a highly distorted perovskite structure. At T E = 750-770 K, a
Electric polarization reversal and memory in a multiferroic material induced by magnetic fields
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.
Why Are There so Few Magnetic Ferroelectrics
Multiferroic magnetoelectrics are materials that are both ferromagnetic and ferroelectric in the same phase. As a result, they have a spontaneous magnetization that can be switched by an applied
Multi-ferroic magnetoelectrics
Abstract Domain aspects of multi-ferroics are reviewed, i.e. of materials, in which two or all three of the properties ‘ferroelectricity.’ ‘ferromagnetism’ and ‘ferroelasticity’ occur simultaneously
Magnetocapacitance without magnetoelectric coupling
The existence of a magnetodielectric (magnetocapacitance) effect is often used as a test for multiferroic behavior in new material systems. However, strong magnetodielectric effects can also be
Electric-field control of exchange bias in multiferroic epitaxial heterostructures.
It is shown that biasing the ferroelectric YMnO3 layer by an electric field allows control of the magnetic exchange bias and subsequently the magnetotransport properties of the FM layer, which may contribute to paving the way towards a new generation of electric-field controlled spintronic devices.
Magnetoelectric properties of some rare earth molybdates
Abstract We observed the spontaneous electric polarization reversal induced by the magnetic field of 100 kOe at 78 K in single crystal samples of orthorhombic β'-phases of Tb2(MoO4)3 and TbGd(MoO4)3.
Relaxor ferroelectricity and colossal magnetocapacitive coupling in ferromagnetic CdCr2S4
Measurements on a simple cubic spinel compound with unusual, and potentially useful, magnetic and electric properties show ferromagnetic order coexisting with relaxor ferroelectricity, and the magnetocapacitive coupling reaches colossal values, approaching 500 per cent.
Electric field-induced magnetization switching in epitaxial columnar nanostructures.
We present direct evidence for room-temperature magnetization reversal induced by an electric field in epitaxial ferroelectric BiFeO3-ferrimagnetic CoFe2O4 columnar nanostructures. Piezoelectric