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Pressure-induced transformation and superhard phase in fullerenes : the effect of solvent intercalation

Yao, Mingguang (author)
Cui, Wen (author)
Xiao, Junping (author)
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Chen, Shuanglong (author)
Cui, Jinxing (author)
Liu, Ran (author)
Cui, Tian (author)
Zou, Bo (author)
Liu, Bingbing (author)
Sundqvist, Bertil (author)
Umeå universitet,Institutionen för fysik
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 (creator_code:org_t)
AIP Publishing, 2013
2013
English.
In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 103:7, s. 071913-
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We studied the behavior of solvated and desolvated C-60 crystals under pressure by in situ Raman spectroscopy. The pressure-induced bonding change and structural transformation of C60s are similar in the two samples, both undergoing deformation and amorphization. Nevertheless, the high pressure phases of solvated C-60 can indent diamond anvils while that of desolvated C(60)s cannot. Further experiments suggest that the solvents in the solvated C-60 act as both spacers and bridges by forming covalent bonds with neighbors in 3D network at high pressure, and thus, a fraction of fullerenes may preserve the periodic arrangement in spite of their amorphization.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

Fullerene
C60
intercalation
solvent
hydrocarbon
xylene
high pressure
diamond anvil cell
superhard
fysik
Physics

Publication and Content Type

ref (subject category)
art (subject category)

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