Decoupling of lattice and orbital degrees of freedom in an iron-pnictide superconductor
Decoupling of lattice and orbital degrees of freedom in an iron-pnictide superconductor
The interplay of structural and electronic phases in iron-based superconductors is a central theme in the search for the superconducting pairing mechanism. While electronic nematicity, defined as the breaking of four-fold symmetry triggered by electronic degrees of freedom, is competing with superconductivity, the effect of purely structural orthorhombic order is …