کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1669917 1008892 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Changes in Gd2O3 films grown on Si(100) as a function of nitridation temperature and Zr incorporation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Changes in Gd2O3 films grown on Si(100) as a function of nitridation temperature and Zr incorporation
چکیده انگلیسی

We investigated Gd2O3 and Zr-incorporated Gd2O3 films grown on Si (100) as a function of nitridation temperature under an NH3 ambient and the incorporation of Zr into the film. The formation of a silicide layer at the interfacial region was suppressed in cases of Zr-incorporated or NH3-nitried Gd2O3 films. The crystalline structure was affected when zirconium, with a relatively small ionic radius, was substituted with gadolinium. When the concentration of Zr atoms in a Gd2O3 film reaches a specific level (Gd0.6Zr1.9O4.3), phase transition occurred from cubic Gd2O3 to monoclinic ZrO2. However, the monoclinic phase disappeared after nitridation at 900 °C in an NH3 ambient. The majority of the nitrogen atoms accumulated near the interface in the films and the concentration of incorporated N increased with increasing Zr content and NH3 annealing temperature. Moreover, nitrogen atoms bonded to Zr-silicate at the interface, in preference to ZrO2 in the film. These incorporation characteristics of nitrogen into Zr-incorporated Gd2O3 film have an effect on the thermal stability and crystalline structure of a film.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 518, Issue 6, 1 January 2010, Pages 1682–1688
نویسندگان
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