High-pressure studies of Nano/sub-micrometer C70 rods

På kinesiska med engelskt Abstract
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.

Liu, Bingbing (author)
Liu, Dedi (author)
Hou, Yuanyuan (author)
Yao, Mingguang (author)
Zou, Guangtian (author)
Li, H. (author)
Luo, Z.J. (author)
Li, Y.C. (author)
Liu, J. (author)
Sundqvist, BertilUmeå universitet,Institutionen för fysik(Swepub:umu)besu0001 (author)
Umeå universitetInstitutionen för fysik (creator_code:org_t)

By the author/editor: Wang, Lin; Liu, Bingbing; Liu, Dedi; Hou, Yuanyuan; Yao, Mingguang; Zou, Guangtian; show more...; Li, H.; Luo, Z.J.; Li, Y.C.; Liu, J.; Sundqvist, Berti ...; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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