X-ray Diffraction (IMAGE) University of Arizona Caption Using focused X-rays, researchers can peek inside a sample of magnetic tunnel junctions and resolve the arrangement of atoms in the thin layers. Credit Weigang Wang, University of Arizona Usage Restrictions This visual may only be used for the purpose of posting and/or reporting of this news release. Credit information must be provided as indicated. 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.