Schematic of a Magnetic Tunnel Junction (IMAGE) University of Arizona Caption A simplified schematic of a magnetic tunnel junction where a non-magnetic tunnel barrier is sandwiched between two magnetic layers, whose spins are aligned in a single direction. 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.