کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7991027 | 1516132 | 2018 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Epitaxial mosaic-like Mn5Ge3 thin films on Ge(001) substrates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Epitaxial mosaic-like Mn5Ge3 thin films were grown on Ge(001) substrates using reactive deposition epitaxy process from Mn deposition or Mn-Ge co-deposition at a substrate temperature of 250â¯Â°C using magnetron sputtering. The cross-sectional transmission electronic microscopy analyses reveal an abrupt interface at the atomic scale; two equivalent epitaxial relationships are found between the substrate and the Mn5Ge3 crystallites: Ge(001)[110] and [11¯0]⥠Mn5Ge3(11¯1)[1¯1¯0]. The chex axis of Mn5Ge3 forms an angle of 45° with the substrate plane. Rietveld analysis from a synchrotron 2-dimensional diffraction pattern revealed that remanent deformations of about 1% exist in the film. M-H measurements of 50-nm thick films elaborated by co-deposition revealed a saturation magnetization, Ms, of 636â¯kAmâ1, whereas the films elaborated by Mn deposition saturate at different values depending on the orientation of the applied magnetic field: Msâ¥â¯=â¯545â¯kAmâ1 and Msâ¥â¯=â¯774â¯kAmâ1. This Ms difference is attributed to shape anisotropy of crystallites and interface quality of the films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 762, 25 September 2018, Pages 363-369
Journal: Journal of Alloys and Compounds - Volume 762, 25 September 2018, Pages 363-369
نویسندگان
Adriana AlvÃdrez-Lechuga, Ricardo López Antón, Luis E. Fuentes-Cobas, José T. HolguÃn-Momaca, Ãscar O. SolÃs-Canto, Francisco Espinosa-Magaña, Sion F. Olive-Méndez,