# Wolfgang Kleemann

Wolfgang Kleemann is professor of experimental and applied physics at the University of Duisburg-Essen. He received his Ph.D. in $1968$ from the University of Göttingen and became professor at the Universities of Paderborn ($1975$) and Duisburg (since $1982$). His perpetual research interest in both magnetism (ferro- and antiferromagnetic crystals, multilayers and nanoparticles) and ferroelectricity (crystals, films and ceramics) brought him to Universities like Paris-Sud, UC Santa Barbara, RIKEN Tokyo, SNU Seoul, and UFMG Belo Horizonte as a visiting professor. His activities have recently become focused on magnetoelectric and multiferroic materials.

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## Switching magnetism with electric fields

Published December 14, 2009
The magnetic state of a multiferroic device can be controlled purely by an electric field—a property that could greatly reduce overheating in data storage devices.