Shallow Donor Levels of Germanium in an Intermediate Magnetic Field

概要

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The magnetic field dependence of the shallow donor levels 1s, 2p_0, 2p_<-1> and 3p_<-1> in germanium was calculated by using two types of variational wave functions each of which is appropriate either for weak magnetic fields or strong magnetic fields. In the range up to γ=0.7 (H=43 kOe), it became evident that for the 1s and 2p_0 states the hydrogen-like wave functions give lower eigenvalues, whereas for the 2p_<-1> and 3p_&tlt;-1> states the harmonic oscillator-type wave functions become more appropriate above about 10 kOe. The effect of the magnetic field on the triplet and singlet ground states was evaluated with inclusion of the central-cell correction for both arsenic and antimony impurities. The optical transitions in the case of H⫽[111] and E⊥[111] were considered.
社団法人日本物理学会の論文
1971-09-05