نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه فیزیک-دانشکده علوم-دانشگاه کردستان- سنندج -ایران
2 گروه فیزیک- دانشکده علوم-دانشگاه کردستان- سنندج -ایران
3 گروه فیزیک- دانشکده علوم- دانشگاه کردستان- سنندج- ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Fe84P16 nanowires were fabricated by AC electrodeposition method at various frequencies (50-1000Hz) into 1000Hz) into anodic oxide (AAO) templates. The AAO templates are prepared by a two-step anodizing process. The synthesized nanowires were analyzed using alternating gradient force magnetometer (AGFM), scanning electronic microscope (SEM), X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDX). The effect of deposition frequency and thermal annealing on magnetic properties and structural of nanowires were investigated. The STM image indicated that the diameter of nanowires is between 30-50 nm. The XRD pattern shows that the crystalline structure of nanowires is bbc. The magnetic properties (coercivity field and squareness) of samples were measured by alternative gradient force magnetic (AGFM). The effect of frequency on magnetic properties of nanowires exhibits that the highest coercivity (1149Oe) obtained for nanowires prepared at 200 Hz and also the squareness of nanowires increased by increasing of electrodeposition frequency. For studying the effect of annealing on the magnetic properties of nanowires, all nanowires were annealed at temperature range (300- 600 oC). The results show that the crystallinity of nanowires increases after annealing and consequently the magnetic properties are improved.
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