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S. A. Bakhramov,A. M. Kokhkharov,E. A. Zakhidov,U. K. Makhmanov,Sh. P. Gofurov 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.64 No.10
The effect of cluster formation in a fullerene mixture C60/70 (D5h−C70 − 95 mass percent andIh−C60 − 5 mass percent) solution in toluene on the electronic properties and the infrared absorptionspectra during long-term (60 days) storage under isotermic conditions is studied. The features ofthe structure of (C60/70)N clusters have been studied using high-resolution transmission electronmicroscopy and a fractal mechanism is proposed for the formation of large (291.4 nm) stableclusters, which may contain up to 19698 molecules of C70 and 1036 molecules of C60. Theprecise values of the nonlinear optical susceptibility (3)xyyx (!) of the C60/70 solutions for differentlaser beam polarizations (in the range of ellipticities = 0.1 − 0.8) are determined. The physicalmechanisms of the laser-induced optical activity of a C60/70 solution in toluene are discussed.