期刊
CHEMICAL PHYSICS LETTERS
卷 443, 期 1-3, 页码 127-131出版社
ELSEVIER
DOI: 10.1016/j.cplett.2007.06.046
关键词
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The pressure-induced transformations in the linear orthorhombic polymer of C-60 have been studied by in situ Raman scattering. The simultaneous application of pressure and laser irradiation results in fast photo-transformation of the 1D-O polymer at pressures as low as similar to 0.3 GPa. The pressure dependence of the Raman modes of the photo-transformed polymer shows singularities near similar to 4 GPa and similar to 15 GPa, related to reversible phase transition and transformation to a metastable highly disordered phase, respectively. The diffuse spectrum of the disordered phase does not exhibit essential changes for increasing pressure up to 29 GPa. The recovered high-pressure phase transforms to a mixture of pristine and dimerized C-60 within similar to 30 h. (c) 2007 Elsevier B.V. All rights reserved.
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