Spiral (IMAGE) University of Wisconsin-Madison Caption This microscopic, twisting spiral -- which exhibits interesting, tunable superconductive properties -- was "grown" by depositing sheets of two-dimensional material over a substrate curved slightly by slipping a nanoparticle underneath. Credit Image courtesy of Song Jin Lab 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.