Phase Transitions on Carbon Nanotubes

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Science  29 Jan 2010:
Vol. 327, Issue 5965, pp. 501
DOI: 10.1126/science.327.5965.501-c

The nature of phase transitions changes with system dimensionality. Many aspects of two-dimensional systems have been explored by adsorbing rare gases on graphite surfaces. Wang et al. (p. 552) reduce the dimensionality further by examining phase transitions of argon and krypton on single-walled carbon nanotubes, following the extent of surface coverage and mapping out phase transitions by using the nanotube as a resonator. Changing the conductance and thus the density of surface electrons also allowed exploration of the effect of adsorbate-surface interactions.

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