2011/01/25 by Elihu Abrahams, Qimiao Si · 3 citations
Chemistry · Materials Science · Physics and Astronomy · #Criticality #Inorganic Chemistry and Materials #Iron-based superconductors research #Point (geometry) #Quantum #Quantum critical point #Quantum phases #Superconductivity #Topological Materials and Phenomena #Work (physics) #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1088/0953-8984/23/22/223201
published as J. Phys.: Condens. Matter 23, 223201 (2011) · 20 pages, 9 figures
arxiv created 2011/01/25 · openalex publication_date 2011/05/19 · arxiv updated 2015/03/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Superconductivity in the iron pnictides and chalcogenides arises at the border of antiferromagnetism, which raises the question of the role of quantum criticality. In this topical review, we describe the theoretical work that led to the prediction of a magnetic quantum critical point arising out of a competition between electronic localization and itinerancy, and the proposal for accessing it by using isoelectronic P substitution for As in the undoped iron pnictides. We go on to compile the emerging experimental evidence in support of the existence of such a quantum critical point in isoelectronically tuned iron pnictides. We close by discussing the implications of these results for the physics of the iron pnictides and chalcogenides.