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Pressure-induced transformation and superhard phase in fullerenes: the effect of solvent intercalation
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2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 103, no 7, 071913- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. Vol. 103, no 7, 071913- p.
Keyword [en]
Fullerene, C60, intercalation, solvent, hydrocarbon, xylene, high pressure, diamond anvil cell, superhard
National Category
Physical Sciences
Research subject
URN: urn:nbn:se:umu:diva-81012DOI: 10.1063/1.4818909ISI: 000323769000028OAI: diva2:652440
Swedish Research Council, 621-2010-3732
Available from: 2013-09-30 Created: 2013-09-30 Last updated: 2015-09-28Bibliographically approved

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Yao, MingguangSundqvist, Bertil
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