The Hot Attraction of Gold (IMAGE) Tohoku University Caption This image shows hall voltage measurement in the bilayer system under the temperature gradient and external magnetic field perpendicular to the bilayer. Credit Eiji Saitoh Usage Restrictions Credit: Eiji Saitoh 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.