Journal article
Superconducting state coexisting with a phase-separated static magnetic order in (Ba,K)Fe2As2, (Sr,Na)Fe2As2, and CaFe2As2
Abstract
By muon spin-relaxation measurements on single-crystal specimens, we show that superconductivity in the AFe2As2 (A=Ca,Ba,Sr) systems, in both the cases of composition and pressure tunings, coexists with a strong static magnetic order in a partial volume fraction. The superfluid response from the remaining paramagnetic volume fraction of (Ba0.5K0.5)Fe2As2 exhibits a nearly linear variation in T at low temperatures, suggesting an anisotropic …
Authors
Goko T; Aczel AA; Baggio-Saitovitch E; Bud’ko SL; Canfield PC; Carlo JP; Chen GF; Dai P; Hamann AC; Hu WZ
Journal
Physical Review B, Vol. 80, No. 2,
Publisher
American Physical Society (APS)
Publication Date
July 1, 2009
DOI
10.1103/physrevb.80.024508
ISSN
2469-9950