▎ 摘　　要

The process of templating a manganese nanocluster with the 12 x 12 moire and other two slightly distorted graphene/Ru(0001) moires was investigated by scanning tunneling microscopy (STM). At the initial stage of nucleation, different adsorption modes for Mn monomer, dimer and trimer guided by various moire periodicities were observed. Upon Mn coverage increasing, STM measurements revealed that Mn clusters exhibit a detectable preference for adsorption sites on all the three different moires. The most favorable adsorption sites for Mn clusters are the fcc regions, where ordering of Mn clusters was observable, and the lateral size of the clusters are tunable with coverage. A density functional theory calculation also showed that magnetism appears with a magnetic moment of 3.79 mu(B) for Mn monomer on MLG/Ru(0001).