Spintronics Development Gets Boost with New Findings into Ferromagnetism in Mn-doped GaAs (2/2) (IMAGE)

Tohoku University

Spintronics Development Gets Boost with New Findings into Ferromagnetism in Mn-doped GaAs (2/2)

Caption

Fig.2: Two conflicting mechanisms to explain the origin of magnetism in (Ga,Mn)As. The p-d Zener model (a) explains that the ferromagnetism of (Ga,Mn)As is mediated by hole carriers generated in the As-bonding state. On the other hand, the impurity model (b) assumes a different hole character in the newly formed Mn-impurity state located above the As-bonding state. The present study has revealed that the p-d Zener model is a correct description to explain the ferromagnetism of (Ga,Mn)As.

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Seigo Souma

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Credit: Seigo Souma

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