Magnetic Interactions, Superconductivity, and Spin-Resonance Peak in Iron-Based Materials

Togushova, Yu. N.; Korshunov, M. M. PHYSICS OF METALS AND METALLOGRAPHY DOI: 10.1134/S0031918X1913026X

Different mechanisms of superconductivity result in specific symmetries and structures of the gap in multiband systems. Here we review the spin fluctuation mechanism of Cooper pairing and discuss the spin resonance feature in the superconducting state of iron-based materials.