Magnetic Field-Current Phase Diagram (IMAGE) University of California - Santa Barbara Caption This magnetic field-current phase diagram shows the high sensitivity of the voltage plateau to magnetic field. When the plateau disappears, the superconductive state expands. Credit UCSB 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.