Single crystals of Hg-12(n-1)n and infinite layer-CaCuO₂ obtained at gas pressure P=10kbar

Single crystals of Hgl-xPbxBa2Can-lCunO2n+2+ς(x=0,0.2,0.5; n=2,3,4,5) and infinite layer CaCuO2 compounds have been grown using a high gas pressure. Resistivity measurements have been performed in fields up to 10 T. The Hg0.8Pb0.2-1234 single crystals of a size up to 0.5×0.5 mm2 have a Tc onset of 130 K. Single crystals of CaCuO2 of a size up to 2×1 mm2 have a Tc onset between 70 and 100 K. X-ray structural refinements have been performed on the CaCuO2 and HgPb-12(n-1)n single crystals. © 1995 Plenum Publishing Corporation.