半导体学报
半導體學報
반도체학보
CHINESE JOURNAL OF SEMICONDUCTORS
2002年
12期
1233-1237
,共5页
稀磁半导体%电子云延伸效应%径向波函数%高压效应
稀磁半導體%電子雲延伸效應%徑嚮波函數%高壓效應
희자반도체%전자운연신효응%경향파함수%고압효응
diluted magnetic semiconductors%Nephelauxetic-effect%radial wave functions%high-pressure effect
通过对Co2+自由离子的3D电子径向波函数进行分析,引入了一个电子云延伸效应修正因子κ来修正这一波函数,从而得到了稀磁半导体Zn1-xCoxSe晶体中Co2+受到了晶体场作用的3D电子径向波函数.应用这一修正后的波函数,计算了Zn1-xCoxSe晶体的光谱跃迁.从物理学的本质出发,考虑了高压力对电子云延伸效应修正因子κ的影响,并且计算了Zn1-xCoxSe晶体吸收谱的压力蓝移谱,得到的蓝移率为dE/dp＝0.45meV/GPa.
通過對Co2+自由離子的3D電子徑嚮波函數進行分析,引入瞭一箇電子雲延伸效應脩正因子κ來脩正這一波函數,從而得到瞭稀磁半導體Zn1-xCoxSe晶體中Co2+受到瞭晶體場作用的3D電子徑嚮波函數.應用這一脩正後的波函數,計算瞭Zn1-xCoxSe晶體的光譜躍遷.從物理學的本質齣髮,攷慮瞭高壓力對電子雲延伸效應脩正因子κ的影響,併且計算瞭Zn1-xCoxSe晶體吸收譜的壓力藍移譜,得到的藍移率為dE/dp＝0.45meV/GPa.
통과대Co2+자유리자적3D전자경향파함수진행분석,인입료일개전자운연신효응수정인자κ래수정저일파함수,종이득도료희자반도체Zn1-xCoxSe정체중Co2+수도료정체장작용적3D전자경향파함수.응용저일수정후적파함수,계산료Zn1-xCoxSe정체적광보약천.종물이학적본질출발,고필료고압력대전자운연신효응수정인자κ적영향,병차계산료Zn1-xCoxSe정체흡수보적압력람이보,득도적람이솔위dE/dp＝0.45meV/GPa.
Based on the 3D electron's radial wave function of Co2+ free ion,a Nephelauxetic-effect modifying factor to modify the radial wave function is introduced when Co2+ cations are put into the crystal field of Zn1-xCoxSe.With the modified wave functions,the optical transitions for Zn1-xCoxSe crystals are calculated.Moreover,based on the first principle of physics,the influences of high-pressure to the Nephelauxetic-effect modifying factor is considered,and the high-pressure blue shift for the Zn1-xCoxSe crystal absorption spectra are calculated and a shift rate of dE/dp＝0.45meV/GPa is obtained.
