Making thermodynamic functions of nanosystems intensive

Details Making thermodynamic functions of nanosystems intensive Making thermodynamic functions of nanosystems intensive

2006-12-29

arxiv.org/abs/cond-mat/0612688v3

Journal of Physics: Condens Matter 19 156218 (2007)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1088/0953-8984/19/15/156218

The interaction potential energy among particles in many systems is of the form of r^-(alpha), at least at long distances. It has been argued that, in systems for which (alpha) < d (d is the space dimension) we encounter with nonextensive (nonintensive) thermodynamic functions. A scaling parameter N~ has been introduced to make nonextensive (nonintensive) thermodynamic functions of such systems extensive (intensive) functions. Our simulation results show that this parameter is not capable of making thermodynamic functions of a nanosystem extensive (intensive). Here we have presented a theoretical justification for the ability of such scaling parameter, and then we have generalized this scaling parameter to be capable of making nonextensive (nonintensive) thermodynamic functions of nanosystems extensive (intensive). This parameter is proportional to the potential energy per particle at zero temperature.

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