Atomic Defects (IMAGE) DOE/Oak Ridge National Laboratory Caption This is Minghu Pan's image of "clover-like" atomic defects -- an example is circled -- that result in strong superconductivity. Credit ORNL 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.