Equivalence between the LCHO Model and the Phillips Theory.I.The SHG Constant x^<(2)>_<123> of the Semiconductors of Sphalerite Type
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概要
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By following straightforwardly the model originally proposed by Phillips andVan Vechten and revised afterwards by Kleinman for explaining the nonlinearoptical constants of zinc-blende type semiconductors, without their importantbut invalid assumption (n?<:?a)%(Z>?<:?Z>)=0, we have proved that their model isessentially equivalent to the primitive LCHO-MO model and the combinationparameter 2 and the overlapping integral S in the latter model are related withthe two parameters E. and C, the homopolar and heteropolar energy gaps, in theformer model, in a simr[e form 2=X(Et'v-Ez.)!1 -SA-C!1#Sl/l(EoA-Ez.)V'l -.5 -CQI-f-S). Observed values of the SHG constant z'.'.'. of several semi-conductors are compared with the calculated values by introducing the reductionfactor 2/3 on the heteropolar energy gap C.
- 社団法人日本物理学会の論文
- 1982-08-15
著者
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Hirata Kazuto
Research Institute for Production Development
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Shibuya Motoichi
Department Of Physics Faculty Of Science Shizuoka University
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Hirata Kazuto
Research Institute Of Electronics Shizuoka University
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