کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1795298 | 1524483 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of annealing on TlGaAs/GaAs single hetero structures and TlGaAs/GaAs multiple quantum well structures grown by low-temperature MBE
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of annealing on TlGaAs/GaAs single hetero structures and TlGaAs/GaAs multiple quantum well structures grown by low-temperature MBE Effects of annealing on TlGaAs/GaAs single hetero structures and TlGaAs/GaAs multiple quantum well structures grown by low-temperature MBE](/preview/png/1795298.png)
چکیده انگلیسی
Annealing studies were performed on single hetero (SH) structures and multiple quantum well (MQW) structures of TlGaAs/GaAs grown by molecular-beam epitaxy (MBE) at a low growth temperature of 190 °C. X-ray diffraction (XRD) measurements on the SH structures revealed that the mole fraction of the antisite As in the low-temperature grown layers can be decreased to less than 0.1% by annealing at 450 °C for 30 min. Due to this annealing, however, decrease and inhomogeneity in Tl mole fraction were also caused. On the other hand, extending the total time of annealing at 400 °C to 16 h enabled us to decrease the antisite As mole fraction to about 0.1% without causing decrease and inhomogeneity in Tl mole fraction. It has also been confirmed that the well-defined MQW structures of TlGaAs/GaAs remain almost unchanged after annealing at 400 °C for 30 min.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volumes 301â302, April 2007, Pages 113-116
Journal: Journal of Crystal Growth - Volumes 301â302, April 2007, Pages 113-116
نویسندگان
K. Ohnishi, T. Kanda, H. Kiriyama, Y. Kajikawa,