Size distribution of FeNiB nanoparticles (CROSBI ID 616137)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lackner, Peter ; Pajić, Damir ; Reissner, Michael ; Novosel, Nikolina ; Zadro, Krešo ; Stöger-Pollach, Michael ; Babić, Emil
engleski
Size distribution of FeNiB nanoparticles
Two samples of amorphous nanoparticles FeNiB, one of them with SiO2 sheath around the core and one without, were investigated by transmission electron microscopy and magnetic measurements. The coating gives mean particle diameters of 4.3 nm compared to 7.2 nm for the uncoated particles. Magnetic measurements prove superparamagnetic behaviour above 160 K (350 K) for the coated (uncoated) sample. With use of effective anisotropy constant Keff – determined from hysteresis loops – size distributions are determined both from ZFC curves, as well as from relaxation measurements. Both are in good agreement and are very similar for both samples. Comparison with the size distribution determined from TEM pictures shows that magnetic clusters consist of only few physical particles.
magnetic nanoparticles; magnetization; structure; size distribution; ternary amorphous alloys; FeNiB
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Podaci o prilogu
05008-1-05008-4.
2014.
objavljeno
Podaci o matičnoj publikaciji
EPJ Web of Conferences Vol. 75 (2014)
D. Niarchos, G. Hadjipanayis, O. Kalogirou
Lahti: EDP Sciences
2100-014X
Podaci o skupu
Nepoznat skup
poster
29.02.1904-29.02.2096