The method 1, wherein {HEAD ~ the first cobalt film} has {TAIL ~ the thickness} of 2 to 4 monolayers 
has
The method 1 , wherein { HEAD ~ the first cobalt film } has { TAIL ~ the thickness } of 2 to 4 monolayers
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH