Superconductors are already used in advanced technologies such as medical devices and some trains, but they require extremely low temperatures to work, making their widespread use difficult. Scientists are looking for materials that can operate at higher temperatures, ideally where liquid nitrogen could replace more expensive cooling methods.
The discovery of iron-based superconductors in 2008 hinted that high-temperature superconductivity might work differently than traditional theories. Materials with magnetic properties, such as a new alloy developed by Associate Professor Yoshikazu Mizuguchi’s team, show promise in this field.
Their experiments showed that changing the ratio of iron and nickel changed the material’s structure and superconducting temperature. This “dome-shaped” structure supports the idea that magnetic elements play a role in unusual superconductivity.
Source: Ferra
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