Influence of organic layer thickness on structure, magnetic, and transport properties of Langmuir-Blodgett ttb-CuPc/CoFe

摘要

In this letter, the ill-defined layer in organic/metal vertical structure was examined using ttb-CuPc/CoFe films. The ill-defined layer thickness was estimated. Beside the usually observed damages to organic underlayer, it is found that ill-defined layer may also influence film properties by modulating the growth of top metal layer. In our case, granular rather than continuous CoFe film was found as increasing ttb-CuPc underlayer thickness with a corresponding change in film's magnetic and transport properties.