Critical behaviour of nanoparticles

Pseudocritical behavior of ferromagnetic pure and random diluted nanoparticles with competing interactions: Variational and Monte Carlo approaches.
E. A. Velásquez, J. Mazo-Zuluaga, J. Restrepo, and Òscar Iglesias

Phys. Rev. B.83,184432 (2011)

Particle with diameter D = 10 having 1067 atoms

and bcc structure. Atoms with different coord. #

are colored differently.

Dependence of the ordering temperature
on diameter for Ni nanostructures.