2008/09/30 by Melissa Gooch, Bing Lv, Bernd Lorenz +3 · 1 citation
Business, Management and Accounting · Materials Science · Physics and Astronomy · #Corporate Taxation and Avoidance #Iron-based superconductors research #Rare-earth and actinide compounds #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.78.180508
published as Phys. Rev. B 78, 180508(R) (2008) · 4 pages, 3 figures
openalex publication_date 2008/11/25 · arxiv created 2008/11/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The systematic pressure shifts of Tc were investigated in the whole phase diagram of the FeAs-based superconducting compound KxSr_1\ensuremath-xFe2As2. Different regions, arising from corresponding responses of Tc to pressure (dTc/dp>0, \ensuremath≃0, or <0), can be clearly distinguished. This reveals an interesting similarity of the FeAs superconductors and the high-Tc cuprates. This behavior is a manifestation of the layered structure of the FeAs compounds and the pressure-induced charge transfer between the (Fe2As2) and (K/Sr) layers. The coexistence of superconductivity and spin-density wave behavior were also observed, and the pressure effects on the latter is explored.