A fast method for calculating magnetic hysteresis loops

This paper presents a fast method to calculate magnetic hysteresis loops of two different multilayer structures, a switchable exchange bias system consisting of Co/Cr
₂
O
₃
and a CoFe/MgO/CoFe spin valve with perpendicular magnetization. The algorithm is implemented using the message passing interface library in combination with openMP. The temperature dependence of the coercive field of a single spin with uniaxial anisotropy is also studied. Observations show that the magnetization loop could be calculated many times faster on multi-processor machine than using the common dynamic calculation on one processor.