Reserch

Establishment of a new simulation method to develop Spintronics materials

2009/09/03

  Theory of Solid State Physics group (Prof. Maekawa's group) has developed a new computer simulation method for magnetic semiconductors in collaboration with University of Tokyo. The new method makes it possible to precisely analyze magnetic properties including the electron-electron interaction in materials. The newly developed method has improved theoretical analyses of magnetic semiconductors. Although ferromagnetic semiconductors have been made only at low temperatures, the new method is expected to design materials for magnetic semiconductors that show ferromagnetic properties at high temperatures, and to contribute to application of spintronics devices. The results have been selected the Editor’s choice of the “Journal of the Physical Society of Japan” and reported in news papers (Kagaku Shinbun, on Sep. 3, 2009).

Fig: Structure of magnetic semiconductors (Ga,Mn)As.  Mn atoms are randomly substituted with Ga atoms.

Fig: Structure of magnetic semiconductors (Ga,Mn)As. 
Mn atoms are randomly substituted with Ga atoms.

 
Prof. Maekawa's group(Theory of Solid State Physics)