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pro vyhledávání: '"Hua Li"'
Publikováno v:
Acta Physica Sinica. 54:2859
C60-PMMA composite films were prepared by the sol-gel method, and the structure, Uv-Vis absorption, Raman scattering, IR absorption of the films were s tudied. The charge-transfer effect was studied between C60 and PMMA by an alyzing their Uv-Vis abs
Publikováno v:
Acta Physica Sinica. 53:3834
There exists a low-frequency relaxation internal friction peak in La2NiO4+δwithδ=0.071, 0.110, 0.135 and 0.140, the peak position shifting to higher temperatu re, when more excess oxygen is incorporated. At δ=0.087 two peaks were obse rved which m