Fe-based superconductors have attracted tremendous interest recently. New evidence on BaFe2As2 shows that chemical doping and pressure, both of which induce superconductivity, distort the lattice in similar ways. The result provides important information in the quest for an understanding of the mechanism behind superconductivity.
- Simon A. J. Kimber
- Andreas Kreyssig
- Dimitri N. Argyriou