Journal article
Muon-spin-relaxation studies of magnetic order and superfluid density in antiferromagnetic NdFeAsO, BaFe2As2, and superconducting Ba1−xKxFe2As2
Abstract
Zero-field (ZF) muon-spin-relaxation (μSR) measurements have revealed static commensurate magnetic order of Fe moments in NdFeAsO below TN∼135 K, with the ordered moment size nearly equal to that in LaFeAsO, and confirmed similar behavior in BaFe2As2. In single crystals of superconducting Ba0.55K0.45Fe2As2, μSR spectra indicate static magnetism with incommensurate or short-ranged spin structure in ∼70% of volume below TN∼80 K, coexisting with …
Authors
Aczel AA; Baggio-Saitovitch E; Budko SL; Canfield PC; Carlo JP; Chen GF; Dai P; Goko T; Hu WZ; Luke GM
Journal
Physical Review B, Vol. 78, No. 21,
Publisher
American Physical Society (APS)
Publication Date
December 1, 2008
DOI
10.1103/physrevb.78.214503
ISSN
2469-9950