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- W1978977000 abstract "The effect of doping on InSb/Al0.1In0.9Sb quantum wells (QWs) was investigated, and it was found that doping improves the electron mobility at low temperatures and leads to a weaker dependence of the resistivity with temperature. The dependence of the carrier density on the well width revealed trap states at the interfaces of the QW whose sheet density per interface was estimated to be about 4 × 1010 cm−2. The low mobility of undoped InSb QWs, in particular, at low temperature seems to have been caused by positively ionized impurity scattering at the interfacial trap states. Doping compensates for the trap states and enhances mobility by suppressing ionized impurity scattering. Thus, intentional doping is necessary for developing high-mobility InSb QW devices. The origin of the trap states is qualitatively discussed." @default.
- W1978977000 created "2016-06-24" @default.
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- W1978977000 date "2015-02-09" @default.
- W1978977000 modified "2023-09-24" @default.
- W1978977000 title "Interfacial trap states and improvement of low-temperature mobility by doping in InSb/AlInSb quantum wells" @default.
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- W1978977000 doi "https://doi.org/10.1063/1.4907806" @default.
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