Single crystals of the heavy fermion system CeCu2Si2 grown from the primary solidification field

A systematic investigation of the ternary phase diagram of Ce-Cu-Si to dete rmine the primary solidification area of the heavy fermion system CeCu2Si2 is presented. We examine the liquidus surface by differential scanning calo rimetric analysis using a special crucible system. Crystal growth experimen ts are performed from a levitated melt using the Nacken Kyropoulos techniqu e. The starting compositions are chosen within the primary solidification a rea. We obtain high quality single crystals of CeCu2Si2 with dimensions up to 7 mm.