Iron and Nickel (IMAGE) University of Würzburg Caption The different spatial layout of the atoms in the iron lattice and in the nickel lattice is responsible for their different physical behavior under extreme conditions. The colored graphic shows the electronic dispersion of nickel in the region which is responsible for this behavior. Credit (Graphics: Michael Karolek) 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.