Rice Graduate Student Tong Chen (IMAGE) Rice University Caption Graduate student Tong Chen spent weeks creating samples to test in neutron scattering beams. About 20 to 30 1-millimeter squares of iron selenide had to be aligned and glued in place atop each crystal of barium iron arsenide. Credit Jeff Fitlow/Rice University Usage Restrictions Credit must be used. 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.