抄録
The authors are investigating the influence on properties of vacuum-deposited thin films of organic dyes prepared applying magnetic fields. In spite of weak magnetic field intensity (0.1-0.3T), the effect of magnetic field could be observed in PL spectra and IR-RAS spectra on 10, 10'-Bianthrone (BA). The organic dyes whose PL spectra, X-ray diffraction pattern and IR-RAS spectra are changed by the application of magnetic field during preparation have inherent molecular orientation. On the other hand, the organic dyes whose those spectra do not depend on magnetic field are amorphous-like and do not have inherent molecular orientation. As kinetic energy (kT) is much larger than magnetic energy operating a molecule, a few molecules cannot maintain inherent molecular orientation. Therefore, the cluster orientated by magnetic field will be incorporated into the conventional large domain, so that the magnetic field effect on various properties can be observed. This paper introduces and discusses the typical experimental results on a magnetic orientation.
