期刊
CHEMICAL PHYSICS LETTERS
卷 341, 期 5-6, 页码 435-441出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0009-2614(01)00512-7
关键词
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The structural stability of the tetragonal two-dimensional (2D) polymeric phase of C-60 has been studied under pressure up to similar to 24 GPa and room temperature by means of in situ Raman scattering. An irreversible transformation of the material to a new phase was observed at pressure similar to 20 GPa. The phonon spectrum of the high-pressure phase provides a strong indication that the fullerene molecular cage is retained and therefore this phase may be related to a three-dimensional (3D) network of C-60 cages. The new phase remains stable upon slow release of pressure to ambient conditions. The recovered material is metastable and transforms in air by detonation under laser irradiation to partially dimerized C-60 (C) 2001 Elsevier Science B.V. AH rights reserved.
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