Topic summary
High temperature superconductor

Extracted from the Wikipedia article High-temperature superconductivity.
History
Until 2001 the cuprates were thought be the only true high temperature superconductors. In that year MgB2 with Tc of 39K was discovered by Akimitsu and colleagues. This was followed in 2006 by Hosono and coworkers with iron-based layered oxypnictide compound with Tc of 56K. These temperature are below the cuprates but well above the conventional superconductors.