A POSSIBLE MODEL TO HIGH T_C FERROMAGNETISM IN GALLIUM MANGANESE NITRIDES BASED ON RESONATION PROPERTIES OF IMPURITIES IN SEMICONDUCTORS

摘要

The high T_C ferromagnetism in (Ga,Mn)N were observed and almost all results are approximately similar to the experimental results in (Ga,Mn)As except the value of T_C. Though all standard experiments on magnetism clearly support the results, the value is unexpectedly high. This work present and discuss the possibility of high T_C ferromagnetism, after brief review of the experimental results. The key speculation to Bosonization method in three dimensions is resembled with the problems in Anderson localization.