Exotic Magnetic Insulator (IMAGE) Rutgers University Caption An exotic magnetic insulator conducts electricity along its edges without energy loss. The M stands for magnetization of the magnet. Credit Wenbo Wang/Rutgers University-New Brunswick 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.