▎ 摘　　要

The decorated nanoparticle which is consisted of two paramagnetic (hexagonal and trimer) nanoparticles and tied by an exchange interaction is examined by the effective-field theory with correlations. It is discussed whether it can exhibit a critical temperature larger than that of a bulk system. The phase diagram and the thermal variations of magnetizations are investigated. When some appropriate conditions are satisfied for exchange interactions, a compensation point and characteristic thermal variations can be found in the total magnetization.