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High-pressure studies of Nano/sub-micrometer C70 rods
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2005 (English)In: High Energy Physics and Nuclear Physics B, ISSN 0254-3052, Vol. 29, no Supplement, 112-115 p.Article in journal (Refereed) Published
Abstract [en]

We have successfully synthesized C-70 rods in nano/sub-micrometers scale by evaporating solvent method. The diameter of the as grown C-70 rods is similar to 500 nm, and the length is similar to 10 mu m. The EDXD pattern and Raman spectroscopy for as -grown sample indicate that the as grown C-70 rod is in hcp structure. The pressure-induced structural phase transition has been studied by using DAC combined with EDXD and Raman spectroscopy methods under quasi-hydrostatic pressure up to 26.1GPa. It is found that hcp structure transforms into amorphous phase for C-70 rods in the pressure range from 23.3 to 26.1GPa, which is higher than the transformation pressure for bulk C-70 crystals. The phase transition is irreversible and it is induced by the collapse of C-70 cage.

Place, publisher, year, edition, pages
2005. Vol. 29, no Supplement, 112-115 p.
Keyword [en]
Fullerenes, C70, nanoparticles, Raman spectroscopy, electron diffraction, high pressure
National Category
Condensed Matter Physics
URN: urn:nbn:se:umu:diva-12441OAI: diva2:152112

På kinesiska med engelskt Abstract

Available from: 2008-02-21 Created: 2008-02-21 Last updated: 2015-09-28Bibliographically approved

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Yao, MingguangSundqvist, Bertil
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