Switching Fields Distribution of a Triangular Permalloy Nanodot

The hysteresis loops and magnetic configurations of a Permalloy triangle nanodot are calculated by means ofmicromagnetic simulations using OOMMF code. I was shown that the reversal process and number of switching fieldsdepends on the triangle position. When the external field direction approaches the triangle symmetry line, the thirdswitching field is more favoured to happen corresponding to a specific magnetic configuration. Moreover, the switchingfields distribution indicates that all switching fields are centred on 60 degrees. Moreover the C state is a dominanteffect in the first and second switching fields.

کلیدواژه ها:

Micromagnetic simulation ، Switching field ، Magnetic configuration ، Reversal process