Chromium tribromide (IMAGE) University of Wyoming Caption TeYu Chien, a University of Wyoming associate professor of physics and astronomy, and Dinesh Baral, a UW graduate student, led research that used scanning tunneling microscopy and spectroscopy measurements that clearly reveal a much smaller energy gap value of a van der Waals material -- chromium tribromide. Their work, recently published online in the journal Physical Chemistry Chemical Physics, resolved previously controversial values of the energy gap, which were based on various optical measurements. This artwork, created by Baral, will be used by the journal for the cover of its upcoming print edition. Credit Dinesh Baral 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.