detwinning FeSe (IMAGE) Rice University Caption Former Rice graduate student Tong Chen ‘21, "detwinning" iron selenide crystals in 2019. Several dozen fragile sheets of iron selenide had to be painstakingly aligned, stacked and glued in place atop another iron-based superconductor, barium iron arsenide. Credit Photo by Jeff Fitlow/Rice University Usage Restrictions Must credit: Jeff Fitlow/Rice University 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.