Figure 2

Majority-spin (positive) and minority-spin (negative) PDOS on the d orbitals of Co atom in the MgO/CoFe interface of (a) MgO/CoFe/Ta system and (b) MgO/CoFe system and in the CoFe/Ta interface of (c) MgO/CoFe/Ta system and (d) CoFe/Ta system. The zero of energy is set to be .