Title :
Temperature dependence of spontaneous magnetization using a continuous model
Author :
Martinez, E. ; Lopez-Diaz, L. ; Torres, L. ; Alejos, O.
Author_Institution :
Univ. de Salamanca, Spain
Abstract :
The temperature dependence of the spontaneous magnetization of a cubic nanoparticle of nickel has been studied. Both a micromagnetic continuous and classical Heisenberg models have been used. With the first one, a strong dependence of the results on cell size is found, whereas the second method reproduces the theoretical Langevin curve accurately.
Keywords :
Heisenberg model; magnetic particles; nanoparticles; spontaneous magnetisation; Langevin curve; cell size; classical Heisenberg models; cubic nanoparticle; micromagnetic models; spontaneous magnetization; temperature dependence; Anisotropic magnetoresistance; Demagnetization; Fluctuations; Helium; Lattices; Magnetic materials; Micromagnetics; Nickel; Saturation magnetization; Temperature dependence;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816463
