Magnetism and superconductivity are considered to be linked in iron pnictides. The discovery by Blomberg et al. that the in-plane resistivity anisotropy in these compounds changes sign as a function of carrier concentration and type demonstrates the close connection between magnetism, nematicity and unconventional superconductivity.
- E. C. Blomberg
- M. A. Tanatar
- R. Prozorov
