We investigated the electronic structures and the p-d and s-d exchange interaction between
carriers and spins of (II,Mn)VI, and (III,Mn)V diluted magnetic semiconductors through firstprinciples
pseudopotential total-energy calculations. We found that ...
We investigated the electronic structures and the p-d and s-d exchange interaction between
carriers and spins of (II,Mn)VI, and (III,Mn)V diluted magnetic semiconductors through firstprinciples
pseudopotential total-energy calculations. We found that some macroscopic parameters,
such as the energy separation of Mn-d band to band edge of a host semiconductor, lattice constant,
the Phillips ionicity and the characteristics of valence band edge, determine the strength of the
p-d exchange integral. We finally propose a model which explains the trend of the p-d exchange
constant with these macroscopic parameters.