کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460011 | 1516190 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase evolution and magnetic properties of DC sputtered Fe-Ga (Galfenol) thin films with growth temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phase evolution and magnetic properties of DC sputtered Fe-Ga (Galfenol) thin films with growth temperatures Phase evolution and magnetic properties of DC sputtered Fe-Ga (Galfenol) thin films with growth temperatures](/preview/png/5460011.png)
چکیده انگلیسی
We report on the evolution of phases, morphology and magnetic properties of DC magnetron sputtered FeGa thin films with the different growth temperatures: room temperature, 100 °C, 200 °C, and 300 °C. These films were grown on Si substrate and were analysed for their morphological, structural and magnetic properties. The X-ray diffraction analysis reveals that the films are nanocrystalline and improve their crystallinity as the growth temperature increases from room temperature to 300 °C. Scanning electron microscopy images indicate grain growth and the morphology changes from spherical to platelets with increase in substrate temperatures. The films deposited at room temperature and 100 °C show very low magnetization and coercivity. On increasing the substrate temperature to 200 °C, it is observed that the M-H curves are isotropic with the films not attaining saturation. At 300 °C, there is substantial increase in coercivity and magnetization observed due to the larger grains present in the films. Magnetic properties also depend on in-plane (463 G, 46.557 emu/cc) and out-of-plane (860 G, 42.774 emu/cc) orientations with small anisotropy. Such an increase in magnetic properties is attributed to increase in grain size and change in morphology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 704, 15 May 2017, Pages 420-424
Journal: Journal of Alloys and Compounds - Volume 704, 15 May 2017, Pages 420-424
نویسندگان
Nivedita L. Raveendran, Ramanathaswamy Pandian, S. Murugesan, K. Asokan, R.T. Rajendra Kumar,