کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1804174 | 1024644 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic response of thermally blocked magnetic nanoparticles in a pulsed magnetic field
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Magnetic response of thermally blocked magnetic nanoparticles in a pulsed magnetic field Magnetic response of thermally blocked magnetic nanoparticles in a pulsed magnetic field](/preview/png/1804174.png)
چکیده انگلیسی
In order to detect fast changes of the Brownian relaxation time due to reaction kinetics on the surface of magnetic particles or particle-clustering processes, we have developed a method that uses pulsed magnetic fields and detects the relaxation of the magnetic response on the time scale of milliseconds. We compared measurements in the frequency domain with the time domain measurement using particle suspensions with three different median sizes. The results obtained with the two methods agreed well. Time domain determination of Brownian relaxation was then used to study the reaction kinetics of the clustering process when sodium chloride solution was added to a magnetic nanoparticle suspension.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 311, Issue 1, April 2007, Pages 166–170
Journal: Journal of Magnetism and Magnetic Materials - Volume 311, Issue 1, April 2007, Pages 166–170
نویسندگان
Andrea Prieto Astalan, Christian Jonasson, Karolina Petersson, Jakob Blomgren, Dag Ilver, Anatol Krozer, Christer Johansson,