▎ 摘 要
Pd-metal graphite (Pd-MG) has a layered structure, where each Pd sheet is sandwiched between adjacent graphene sheets. The DC magnetization and AC magnetic susceptibility of Pd-MG have been measured using a SQUID magnetometer. Pd-MG undergoes a superconducting transition at T-c (=3.63 +/- 0.04 K). The superconductivity occurs in the Pd sheets. The irreversibility between chi(ZFC) and chi(FC) occurs well above T-c. The susceptibility chi(FC) obeys a Curie-Weiss behaviour with a negative Curie-Weiss temperature (-13.1 less than or equal to Theta less than or equal to -5.4 K). The growth of magnetic order is limited by the disordered nature of nanographites, forming magnetic short-range order at low temperature in the graphene sheets.