The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides

TitleThe puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides
Publication TypeJournal Article
Year of Publication2010
AuthorsJohnston DC
Journal TitleAdvances in Physics
Volume59
Pages803-1061
Date Published11
ISBN Number0001-8732
Accession NumberISI:000282683200001
Keywordscrystal-structure, electronic phase-diagram, fe-57 mossbauer-spectroscopy, fe-based superconductors, INELASTIC NEUTRON-SCATTERING, magnetic-properties, rare-earth, spin-density-wave, T-C SUPERCONDUCTORS, zrcusias-type-structure
Abstract

The response of the worldwide scientific community to the discovery in 2008 of superconductivity at Tc = 26 K in the Fe-based compound LaFeAsO1-xFx has been very enthusiastic. In short order, other Fe-based superconductors with the same or related crystal structures were discovered with Tc up to 56 K. Many experiments were carried out and theories formulated to try to understand the basic properties of these new materials and the mechanism for Tc. In this selective critical review of the experimental literature, we distill some of this extensive body of work, and discuss relationships between different types of experiments on these materials with reference to theoretical concepts and models. The experimental normal-state properties are emphasized, and within these the electronic and magnetic properties because of the likelihood of an electronic/magnetic mechanism for superconductivity in these materials.

URL<Go to ISI>://000282683200001http://pdfserve.informaworld.com/207601_731196549_927730316.pdf
DOI10.1080/00018732.2010.513480
Alternate JournalAdv Phys