The weak magnetic field sensor 1, in which material of the magnetic layer is selected from {HEAD ~ a group} consisting of {TAIL ~ amorphous metal}, Permalloy and Supermalloy 
consisting of
The weak magnetic field sensor 1 , in which material of the magnetic layer is selected from { HEAD ~ a group } consisting of { TAIL ~ amorphous metal } , Permalloy and Supermalloy
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH