Interdiffusion of Al and Ga in Si-Implanted GaAs-AlAs Superlattices
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概要
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Interdiffusion in GaAs-AlAs superlattices after Si implantation at 200 keV was studied under various annealing conditions. Interdiffusion of Al and Ga at the GaAs-AlAs interface was not observed before annealing, and compositional disordering due to interdiffusion was found to be controlled by changing the annealing temperature, annealing time, and ion dose. Interdiffusion at the interface followed electrical activation of implanted Si. The interdiffusion coefficients for Al and Ga were estimated to be (2〜5)×10^<-18>cm^2/s and (1-3)×10^<-17>cm^2/s at annealing temperatures of 750° and 800℃, respectively, in the dose range 2×10^<13>〜2×10^<14>cm^<-2>. The interdiffusion coefficients were found to increase markedly above a dose of 〜2×10^<14>cm^<-2>. The results of direct TEM imaging were in good agreement with the predictions from the evaluated interdiffusion coefficients.
- 社団法人応用物理学会の論文
- 1984-12-20
著者
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Horikoshi Yoshiji
Musashino Electrical Communication Laboratory Nippon Telegraph And Telephone Public Corporation
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Hirayama Yoshiro
Musashino Electrical Communication Laboratory Nippon Telegraph And Telephone Public Corporation
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Horikoshi Yoshiji
Musashino Electric Communication Laboratory Nippon Telegraph And Telephone Public Corporation
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Okamoto Hirohsi
Musashino Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation
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Okamoto Hirohsi
Musashino Electrical Communication Laboratory Nippon Telegraph And Telephone Public Corporation
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