Modeling vortices in nanodisks by simulations

I have compiled a collection of articles from the Brazilian group of B. V. Costa and collegues on the subject of simulation of vortex structures on nanodots. I hope they will be of interest to you:

Analytical and Monte Carlo study of two antidots in magnetic nanodisks
with vortex-like magnetization
A. R. Pereira, A. R. Moura, W. A. Moura-Melo, D. F. Carneiro, S. A. Leonel and P. Z. Coura
J. Appl. Phys. 101, 034310 (2007)

A model for vortex formation in magnetic nanodots
S. A. Leonel, I. A. Marques, P. Z. Coura, and B. V. Costa
J. Appl. Phys. 102, 104311 (2007)

Diagram for vortex formation in quasi-two-dimensional magnetic dots
J. C. S. Rocha, P. Z. Coura, S. A. Leonel, R. A. Dias, and B. V. Costa
J. Appl. Phys. 107, 053903 (2010)

Magnetic vortex formation and gyrotropic mode in nanodisks.
D. Toscano, S. A. Leonel, R. A. Dias, P. Z. Coura, J. C. S. Rocha  and B. V. Costa
J. Appl. Phys. 109, 014301 (2011)