Potential “unconventional” superconducting material. (IMAGE) Tokyo Metropolitan University Caption (a) Crystal structure of the team’s new material. (b) The lengths of repeating unit cells (lattice constants) as a function of iron to nickel ratio. (c) Transition temperatures as a function of iron to nickel ratio for magnetization, specific heat, and resistivity, all of which show the same dome-like shape. Credit Tokyo Metropolitan University Usage Restrictions Please give credit when using this content License Original 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.