Classifying multiferroics: Mechanisms and effects

Multiferroics : Past , present , and future

© 2010 American Institute of Physics, S-0031-9228-1010-020-9 The interplay between electricity and magnetism has fascinated scientists and engineers for centuries, ever since Hans Christian Oersted noticed in 1820, quite by accident, that a magnetic compass needle deflected when he switched the current in a nearby battery on or off. Over the 40 years or so following Oersted’s observation, the c...

Multiferroics and magnetoelectrics: thin films and nanostructures

Multiferroic materials, or materials that simultaneously possess two or more ferroic order parameters, have returned to the forefront of materials research. Driven by the desire to achieve new functionalities—such as electrical control of ferromagnetism at room temperature—researchers have undertaken a concerted effort to identify and understand the complexities of multiferroic materials. The a...

Order Parameters and Phase Diagrams of Multiferroics

The symmetry properties, order parameters, and magnetoelectric phase diagrams of multiferroics are discussed. After brief reviews of Ni3V2O8, TbMnO3, and RbFe(MoO4)2, we present a detailed analysis of RMn2O5 (with R=Y, Ho, Dy, Er, Tb, Tm). PACS numbers: 75.25.+z,75.10.Jm,75.40.Gb Submitted to: J. Phys.: Condens. Matter Order Parameters and Phase Diagrams of Multiferroics 2

The sensitive moments of multiferroics

RESEARCH HIGHLIGHTS Generating new information from the web Easy multiferroics New clues on organic superconductors Lasers pushing the limits X-rays play the right hand An open-and-shut case Miniscule nuclear molecules Right on target A four-dimensional picture of our three-dimensional world Closing the gap in understanding a broken symmetry Twisting around the palladium Zirconium takes the str...

Electromagnon excitations in canted-spin multiferroics