Multiferroicity due to charge ordering
By J. van den Brink, D. Khomskii. 2008
400 citations recorded by the source corpus.
In this contribution to the special issue on multiferroics we focus on multiferroicity driven by different forms of charge ordering. We will present the generic mechanisms by which charge ordering can induce ferroelectricity in magnetic systems. There is a number of specific classes of materials for which this is relevant. We will discuss in some detail (i) perovskite manganites of the type (PrCa)MnO3, (ii) the complex and interesting situation in magnetite Fe3O4, (iii) strongly ferroelectric frustrated LuFe2O4 and (iv) an example of a quasi-one-dimensional organic system. All these are ‘type-I’ multiferroics, in which ferroelectricity and magnetism have different origins and occur at different temperatures. In the second part of this article we discuss ‘type-II’ multiferroics, in which ferroelectricity is completely due to magnetism, but with charge ordering playing an important role, such as (v) the newly discovered multiferroic Ca3CoMnO6, (vi) possible ferroelectricity in rare earth perovskite nickelates of the type RNiO3, (vii) multiferroic properties of manganites of the type RMn2O5, (viii) perovskite manganites with magnetic E-type ordering and (ix) bilayer manganites.
Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/a516f6e48690e9f9c548ddeb6275a00b8fa2207c
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In Electronic, Optical and Magnetic Materials
In Materials Chemistry
Citations in the corpus
- Introduction to magnetoelectric coupling and multiferroic films (2011, background): “Very broadly, these can be subdivided into single phase materials having widely separate ferroelectric and magnetic ordering temperatures (type 1 multiferroics in the nomenclature introduced by Khomskii [82]), single phase materials manifesting a magnetic transition with collateral ferroelectric ord”