کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9834084 | 1524906 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic and magnetoelastic properties of epitaxial (2Â 1Â 1)-oriented RFe2 (R=Dy, Tb) thin films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Epitaxial, (2 1 1)-oriented thin films of RFe2 (R: rare earth; here: Dy, Tb) were deposited by molecular beam epitaxy on faceted and non-faceted α-Al2O3 (101¯0) (m-plane) substrates utilizing a 15 Ã
thin Fe seed layer and a 500Â Ã
Nb buffer layer. Detailed X-ray diffraction analyses revealed a twin-free epitaxial (2Â 1Â 1)-oriented growth of buffer layer and film. The magnetostrictive layer RFe2, as well as the template layers Nb and Mo exhibited the same crystallographic in-plane orientation with regard to the substrate. The same epitaxial relationship was found for films prepared on faceted and on non-faceted substrates. This implies a coherent crystal overgrowth of the epilayers over the facet ridges. Magnetization measurements of the RFe2 films revealed coercive fields of 0.4Â T for TbFe2 and 0.13Â T for DyFe2. The magnetoelastic coefficients at 1.1Â T amounted to b=-107MPa and b=-37MPa for the TbFe2 and DyFe2 thin films, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 292, April 2005, Pages 164-177
Journal: Journal of Magnetism and Magnetic Materials - Volume 292, April 2005, Pages 164-177
نویسندگان
J. Oster, L. Wiehl, H. Adrian, M. Huth,