کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10128952 | 1645163 | 2019 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of DyFe nanostructures using E-beam lithography for magneto-optical applications
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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
Low dimensional artificially engineered spintronic materials can be used to increase the density of magnetic media using energy based magnetic recording. For this purpose, magnetic nanostructures such as patterned arrays with magnetic characteristics having high uniaxial magnetic anisotropy are the new contestants in the field of ultrahigh storage media. In this context, we focus on the synthesis of nano-dimensional magnetic media consisting of Dy and Fe bilayer structured arrays, fashioned in patterned magnetic nanostructures. The dimensional characteristics of these nanostructures were illustrated using field emission electron microscopy and energy dispersive elemental mapping. Room temperature magnetic properties of these nanostructures were first determined through atomistic spin model simulations which led us to configure the experimental hysteresis loop for DyFe bilayer. The deposition of crystalline Dy and Fe through DC and RF sputtering resulted in a soft magnetic behavior as revealed by the characteristic shape of the hysteresis loops exhibiting anisotropic features. Reflection spectra for these DyFe bilayers reveal a decrease in reflectance from ultraviolet to visible region demonstrating high absorption in visible region. The variation in reflectance spectra and squareness of the hysteresis loop reveals that these nanostructures as a viable candidate for magneto-optical devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 469, 1 January 2019, Pages 196-202
Journal: Journal of Magnetism and Magnetic Materials - Volume 469, 1 January 2019, Pages 196-202
نویسندگان
Syed Kumail Abbas, Ali Akbar, Shahid Atiq, Murtaza Saleem, Mamoor Iftikhar, Hafiz Muhammad Rafiq, Shahzad Naseem, Muhammad Sabieh Anwar,