Antiferromagnetism and superconductivity in Hg-based cuprate compounds of (Hg1-xPbx)Ba2Ca2Cu3O8+delta

摘要

The phase diagram of the Hg-based compound of (Hg1-xPbx)Ba2Ca2Cu3O8+delta is constructed based on data obtained from experimental measurements of its magnetic susceptibility, neutron scattering results, X-ray photoelectron spectroscopy, and the electron probe microanalyzer (EPMA). The relationships between the transition temperature for the antiferromagnetic phase and the superconducting phase with the doping concentration were traced out in the phase diagram. Due to difficulty in measuring the transition from the insulating to the metallic state in the phase diagram, the phase boundary for these two phases is yet to be determined. From our results, so far this boundary is only a qualitative one. [References: 1]