John Heron, Cornell University (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption John Heron is the lead author of a Nature paper describing the switching of ferromagnetism at room temperature using an electric field. Credit (Photo courtesy of John Heron, Cornell) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.