Electrons with Opposite Spins (image) Max Planck Institute for Polymer Research Share Print E-Mail Caption Difference in conduction by electrons with opposite spins in ferromagnetic metals can be precisely resolved using terahertz waves. Credit © MPI-P Usage Restrictions This image may only be used with appropriate caption and credit. Editorial use only. Share Print E-Mail 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.