Abstract
The author reviewed his research works on clusters and nano-particle assemblies, which were motivated by metastable structures and Kubo effects (quantum size effects) in ultra-fine particles. He studied (1) magnetic and electrical properties of granular alloy films prepared by the ion-cluster-beam method, (2) magnetic and electronic properties of nonequilibrium transition metal fine particles prepared by the mechano-chemistry method, (3) size-controls and physical properties of metal and alloy clusters prepared by plasma-gas-condensation methods, (4) forming abilities of core-shell clusters and composites of different metal clusters via gas phase routes, and (5) size-controls and physical properties of transition metal nanoparticles and noble metal-sulfide nano-particles prepared via colloidal liquid phase routes.
