Chemical Splitting of Ground State of Lithium Donor in Silicon
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概要
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The energies of the ground states of the interstitial lithium donor in silicon have been calculated for interstitial T_d and D_<3d> site symmetries. It is shown that the assumption of the D_<3d> site symmetry for the lithium donor is favorable for the experimental fact of an "inverted" Group-V-like ground state. The lowest ground state is the 1s(A_<2u> + E_g + E_u) state with the ionization energy of 30MeV, lying about 1.5MeV below the 1s(A_<1g>) state. The corresponding observed values are 32.81MeV and 1.8MeV, respectively. It is shown that the "inverted" Group-V-like ground state is attributed to the orthogonalization effect to the core state of lithium in silicon and the interstitial nature of the lithium donor.
- 社団法人日本物理学会の論文
- 1967-10-05
著者
-
Nara Hisashi
College Of Arts And Sciences Tohoku University
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Morita Akira
Department Of Basic Science Ishinomaki Senshu University
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