中文摘要：

定量分析Mn和Cr共掺杂时GaAs居里温度的特点,经过计算可得反铁磁性交换作用使得材料的居里温度降低,制备高居里温度的材料需要更高的掺杂浓度,增加了制备高居里温度材料的难度;而高的空穴浓度能有效地抑制反铁磁性交换作用对居里温度的影响。

英文摘要：

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.