Interplay between the magnetic field and the dipolar interaction on a magnetic nanoparticle system: A Monte Carlo study

Using Monte Carlo Method to Study Magnetic Properties of Frozen Ferrofluid

“…Because the strong interaction remain the barrier as mentioned above, the blocking temperature exists even the applied field exceeds the anisotropy field H a . This scenario also found by Serantes et al (Serantes et al, 2008), however, the behaviors at the low field are rather different from our results. We find that the curvatures are separated clearly at the low field, because at this region the local field plays dominant role, then the blocking temperature increases along with the increase of the concentration.…”

Role of the poly-dispersity and the dipolar interaction in magnetic nanoparticle systems: Monte Carlo study

“…Besides, studying fundamental properties of nanostructure magnetic materials is an interesting problem. In fact, the number of papers performing simulations of magnetic nanoparticle systems has increased fast during this decade [5][6][7][8][9][10][11][12][13][14][15][16][17]. However, these papers seemed to focus on the anisotropy and interparticle interactions, while the experiments proved that the size distribution has the prime importance [18].…”

Superparamagnetism and Monte Carlo Simulations

“…We describe here a MC method based in this procedure (see for example refs. [21][22][23][24][25][26][27][28][29][30][31][32]): the simulated system consists on an assembly of N-particles contained inside a unit cubic cell (side L ), which is replicated by using periodic boundary conditions in order to resemble a large and homogeneous system. The simulations are always done in two parts: in the first one the spatial distribution of the particles is set, and in the second part the particles are characterized by their attributes (size, anisotropy, magnetic moment) and the evolution of the system is simulated as a function of the desired parameters.…”