Issue |
Europhys. Lett.
Volume 54, Number 4, May 2001
|
|
---|---|---|
Page(s) | 468 - 474 | |
Section | Condensed matter: structural, mechanical and thermal properties | |
DOI | https://doi.org/10.1209/epl/i2001-00269-3 | |
Published online | 01 December 2003 |
Phase diagram of model
fullerenes
Istituto Nazionale per la Fisica della Materia (INFM) and
Dipartimento di Fisica Università di Messina -
Contrada Papardo, C.P. 50, 98166 Messina, Italy
Corresponding author: caccamo@tritone.unime.it
Received:
23
October
2000
Accepted:
4
March
2001
Recent studies have confirmed
that model has a stable
liquid phase confined to a rather narrow temperature range;
in this letter we
determine the phase diagram of model
and show that also this fullerene possesses a liquid phase
whose existence range is wider than that of
.
A "corresponding state"behaviour
of
and
,
emerging from a description
in terms of reduced quantities of
both the interaction potential and the phase diagrams' parameters,
is then extended to higher-order
fullerenes. Critical- and triple-point densities and temperatures of
,
and
are thereby predicted.
The decreasing accuracy of such a representation
of
phase behaviour
with increasing n is discussed
in relation to the model potential features.
PACS: 61.20.Gy – Theory and models of liquid structure / 61.48.+c – Fullerenes and fullerene-related materials / 64.70.Fx – Liquid-vapor transitions
© EDP Sciences, 2001
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