Influence of Pt thickness on magnetization reversal processes in (Pt/Co)3 multilayers with perpendicular anisotropy

Minimization of the Electric Energy in Systems Using Ultra-High Density Magnetic Storage

“…From the relation (10) we deduce another expression of 1/2 : . Using this expression of 0 with the values of its parameters measured [11] and recorded in We notice that these values are in perfect agreement with the values found by linear fitting in the 1nm thick layer and are low compared to that found for in multilayers ( ) 3 [6]. And that the value of the width of the distribution of the energy barrier, when no field is applied, is generally low in all thicknesses and the lowest value is obtained in this thickness of 1nm as shown fig.…”

“…Therefore, perfect control and optimization of these parameters controlling the distribution of energy barriers in order to reduce this energy as much as possible, is essential in order to minimize the electrical energy required for this effect. Some works has been devoted to the activation energy [3,4,5,6] but did not discuss the effect of the thickness on the distruibution and the width of the energy barriers in the samples. This paper has the particularity of showing that the thickness of the magnetic layers have an influence on the width of the distribution of energy barrier, hence on electrical energy.…”