Drastic effect of impurity scattering on the electronic and superconducting properties of Cu-doped FeSe
Physical Review B American Physical Society (APS) 105:11 (2022) 115130
The drastic effect of the impurity scattering on the electronic and superconducting properties of Cu-doped FeSe
ArXiv 2203.04624 (2022)
Ironing out the details of unconventional superconductivity
ArXiv 2201.02095 (2022)
Iron pnictides and chalcogenides: a new paradigm for superconductivity
Nature Nature Research 601 (2022) 35-44
Abstract:
Superconductivity is a remarkably widespread phenomenon that is observed in most metals cooled to very low temperatures. The ubiquity of such conventional superconductors, and the wide range of associated critical temperatures, is readily understood in terms of the well-known Bardeen–Cooper–Schrieffer theory. Occasionally, however, unconventional superconductors are found, such as the iron-based materials, which extend and defy this understanding in unexpected ways. In the case of the iron-based superconductors, this includes the different ways in which the presence of multiple atomic orbitals can manifest in unconventional superconductivity, giving rise to a rich landscape of gap structures that share the same dominant pairing mechanism. In addition, these materials have also led to insights into the unusual metallic state governed by the Hund’s interaction, the control and mechanisms of electronic nematicity, the impact of magnetic fluctuations and quantum criticality, and the importance of topology in correlated states. Over the fourteen years since their discovery, iron-based superconductors have proven to be a testing ground for the development of novel experimental tools and theoretical approaches, both of which have extensively influenced the wider field of quantum materials.Signatures of a quantum Griffiths phase close to an electronic nematic quantum phase transition
Physical Review Letters American Physical Society 127:24 (2021) 246402