Molecular beam epitaxy (IMAGE) DOE/Oak Ridge National Laboratory Caption ORNL's Matt Brahlek used molecular beam epitaxy to grow a thin film interface of topological insulating and superconducting materials, atom by atom. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy Credit Carlos Jones/ORNL, U.S. Dept. of Energy Usage Restrictions None License Original 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.