ChemInform Abstract: Zintl Phase as Dopant Source in the Flux Synthesis of Ba_1-xK_xFe₂As₂Type Superconductors.

Use of the Zintl phase KSn as a source of potassium dopant in tin flux syntheses of Ba1−xKxFe2As2 allows for incorporation of large amounts of potassium with much less attack on reaction vessels compared to the use of elemental potassium as a reactant; it also enables further study of tin incorporation into the products.