Nanostructured L1(0)-CoPt dot arrays with perpendicular magnetic anisotropy

摘要

In this work, we have focused on the elaboration and characterization of nanostructured L1(0)-CoPt magnetic dot arrays prepared by depositing Co50Pt50 nanoparticles preformed in the gas phase on Si substrates patterned by electron beam lithography (EBL). The MFM observations have revealed an out-of plane single domain state. The VSM measurements have indicated a correlated super-spin glass state (CSSG) collective behavior. Consequently, the magnetic properties are mainly governed by a correlated super-spin glass state with strong inter-dot dipolar interactions. (C) 2017 Elsevier B.V. All rights reserved.