Surface Fermi Arc Illustration (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption This illustration shows a repeated 2D patterning of a property related to electrical conductivity, known as the surface Fermi arc, in rhodium-silicon crystal samples. Credit Hasan Lab/Princeton University 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.