Mn and Cr co-doped impact to Curie temperature of GaAs

This paper analyzes,when Mn and Cr co-doped,anti-ferromagnetic exchange interaction makes the Curie temperature of material decrease;in order to prepare high Curie temperature of the material requires higher doping concentration,preparation of high Curie temperature of the material more difficult;a high hole concentration can effectively suppress anti-ferromagnetic exchange interaction in the Curie temperature of the material.