In this paper cores and stable sets for games with fuzzy coalitions are introduced and their relations studied. For convex fuzzy games it turns out that all cores coincide and that the core is the unique stable set. Also relations between cores and stable sets for fuzzy clan games are discussed.

Microcrystalline silicon thin films exhibiting high crystallinity and high quality were successfully fabricated from the fluorinated precursors SiH n F m (n+m≤3) by repeating the deposition of very thin layers, 10 nm thick, and by treatment with atomic hydrogen. Hydrogen concomitant with dangling bonds is efficiently removed from the Si network at the levels of 0.45 at.% and 3.7×1016 spins/cm3, respectively. A specific texture showing a strong orientation toward (220) is observed in the X-ray diffraction (XRD) spectra. High photoconductivity and a considerable diffusion length of 400 nm for holes under the ambipolar condition verify the films' high quality and high crystallinity.

We observed the structure of polycrystalline silicon (poly-Si) fabricated from fluorinated precursors, SiF n H m (n+m≤3), by repeated deposition of very thin layers, 10 nm thick, and atomic hydrogen treatment (H-treatment). The surface views and the cross-sectional views of poly-Si were observed using a field-emission scanning electron microscope (FE-SEM) and transmittance electron microscope (TEM), respectively. Poly-Si was made up of columnar crystalline grains of which diameters were 200 nm or more. These columnar crystalline grains grew perpendicularly on the amorphous layer grown directly on the glass substrate. Crystalline nuclei were formed within the amorphous layer and grew into crystalline grains with the aid of H-treatment. The thickness of this incubation layer was dramatically reduced by extending the period of H-treatment.

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In this paper, we discuss the results of our study of the synthesis of endohedral iron-fullerenes. A low energy Fe + ion beam was irradiated to C 60 thin film by using a deceleration system. Fe + -irradiated C 60 thin film was analyzed by high performance liquid chromatography and laser desorption/ ionization time-of-flight mass spectrometry. We investigated the performance of the deceleration system for using a Fe + beam with low energy. In addition, we attempted to isolate the synthesized material from a Fe + -irradiated C 60 thin film by high performance liquid chromatography.