Grain size influence upon magnetic behavior at nanoscale. A computational approach

Computation of magnetization, exchange stiffness, anisotropy, and susceptibilities in large-scale systems using GPU-accelerated atomistic parallel Monte Carlo algorithms

“…The grains are phase separated by a single atomic spacing, thus no exchange coupling is considered between the grains. We note in a previous work granular structures where the grains are not fully separated were studied [43], and the method shown here may also be applied to this case. Since the Curie temperature is strongly dependent on the grain size, the magnetization in such thin films does not follow a simple Bloch law.…”