Controlling magnetism with multiferroics

Controlling Magnetism with a Flip of a Switch

Controlling magnetism solely by electrical means is a long-standing scientific challenge receiving everincreasing attention over the last decade [1]. Electrically controlled magnetism is significant both fundamentally, as it brings together disparate elements of condensedmatter physics, and practically, in that it opens up the prospect of new devices with unprecedented performance [2]. The rema...

Controlling magnetism of a complex metallic system using atomic individualism.

When the complexity of a metallic compound reaches a certain level, a specific location in the structure may be critically responsible for a given fundamental property of a material while other locations may not play as much of a role in determining such a property. The first-principles theory has pinpointed a critical location in the framework of a complex intermetallic compound--Gd(5)Ge(4)--t...

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...

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