Abstract
We discovered that under pressure SnO with -PbO structure, the same structure as in many Fe-based superconductors, e.g., -FeSe, undergoes a transition to a superconducting state for with a maximum of 1.4 K at . The pressure dependence of reveals a domelike shape and superconductivity disappears for . It is further shown from band structure calculations that SnO under pressure exhibits a Fermi surface topology similar to that reported for some Fe-based superconductors and that the nesting between the hole and electron pockets correlates with the change of as a function of pressure.
- Received 2 July 2010
DOI:https://doi.org/10.1103/PhysRevLett.105.157001
© 2010 The American Physical Society