Quantum Friction & Drag (IMAGE) University of Iowa Caption This illustration shows how the magnetic fields of individual atoms, reimagined as bar magnets, change position like tiny compasses when heat or a current is applied to a solid material. The repositioning creates a spin wave, shown by the dotted line. These spin waves are being studied for potential use in microelectronics. Credit Illustration courtesy of Michael Flatté laboratory. 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.