کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1803685 1024626 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electron spin resonance properties of semiconductor/granular film heterostructures with cobalt nanoparticles in millimeter waveband
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Electron spin resonance properties of semiconductor/granular film heterostructures with cobalt nanoparticles in millimeter waveband
چکیده انگلیسی

Ferromagnetic resonance spectra (FMR) on heterostructures of amorphous silicon dioxide films containing cobalt nanoparticles, (SiO2)100−xCox, grown on GaAs and Si substrates have been investigated over a frequency range of 37–41 GHz at room temperature. The FMR linewidth and saturation magnetization dependencies on the cobalt concentration have been analyzed. The impact of the semiconductor type on the FMR linewidth ΔH and a sharp increase in ΔH with a decreasing concentration of cobalt nanoparticles have been noted. The effect of considerable FMR linewidth broadening has been accounted for by the spin-polarized relaxation mechanism.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 320, Issue 5, March 2008, Pages L37–L41
نویسندگان
, , , , , ,