Abstract
In order to develop the magnetic thin film, we studied the structure and magnetic properties in the Langmuir-Blodgett (LB) multilayers of transition metal ion-fatty acid salt, using X-ray diffraction and electron paramagnetic resonance (EPR) methods. We found the various orientation as a function of multiplicity of layers in the LB films. In the film having more than four layers, the long molecular axis of fatty acid exhibits an apparent tilt structure; but in the film less than three layers, the molecular axis holds the perpendicular position against the substrate plane. Using the vector EPR measurements, we found the anomalous broadening of line shape due to the exchange interaction between successive layers. We concluded that the LB films of the transition metal ion-fatty acid salts may allow the highly ordered and the low-dimensional magnetic system.
