کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1795538 1524482 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vertical gradient freeze growth with external magnetic fields
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Vertical gradient freeze growth with external magnetic fields
چکیده انگلیسی

Experimental and numerical results are presented demonstrating the impact of a traveling magnetic field (TMF) on the heat and mass transport in doped, VGF-grown Ge crystals. In growth with TMF a considerable effect on the deflection of the solid–liquid interface is observed, whereas the dopant segregation does not change significantly compared to the growth without field. Furthermore, pronounced striation patterns were found in the crystals indicating a time-dependent melt flow during growth. A combined TMF/DC field is presented which was developed to avoid this effect. Isothermal model experiments using a liquid GaInSn alloy show the capability of the DC field for an effective damping of fluctuations of the flow velocity in qualitative agreement with numerical results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 310, Issues 7–9, April 2008, Pages 1518–1522
نویسندگان
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