کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1802007 1024587 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of permalloy nanostructured films by deposition of laser ablated nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Synthesis and characterization of permalloy nanostructured films by deposition of laser ablated nanoparticles
چکیده انگلیسی

A permalloy (Ni81Fe19; at%) microparticle (MP) aerosol was ablated to produce a nanoparticle (NP) aerosol that was then impacted at high velocity onto a substrate to produce porous thick films. The structure of the NPs was analyzed by transmission electron microscopy and the morphologies of the NPs and the nanostructured films were studied using high-resolution transmission electron microscopy and scanning electron microscopy. These analyses showed that the original composition and structure of the MPs were preserved in the NPs and films. The majority of NPs that were produced ranged in size between 2 and 15 nm with some larger particles present. Magnetization–temperature curves showed that the films consisted of a mixture of small superparamagnetic NPs and larger ferromagnetic NPs. A high saturation magnetization of 62.3 emu/g at 300 K was retained in the films indicating that they remained free of significant oxidation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 321, Issue 17, September 2009, Pages 2537–2540
نویسندگان
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