Abstract
Amorphous iron or cobalt carbide nanoparticles with a carbon onion structure were produced using a pulsed laser ablation of metallocene powders at room temperature. While they are ferromagnetic at room temperature, they exhibit a drastic change in magnetic spin moments at 20-30 K. These magnetic properties are ascribed to a considerable magnetic contribution of superparamagnetism for the amorphous iron or cobalt carbide nanoparticles with a carbon onion and the origin of the magnetic properties is discussed.
| Original language | English |
|---|---|
| Article number | 064302 |
| Journal | Journal of Applied Physics |
| Volume | 99 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
Cite this
Laser synthesis and magnetism of amorphous iron and cobalt carbide nanoparticles with carbon onion. / Huh, Seung H.; Nakajima, Atsushi.
In: Journal of Applied Physics, Vol. 99, No. 6, 064302, 2006.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Laser synthesis and magnetism of amorphous iron and cobalt carbide nanoparticles with carbon onion
AU - Huh, Seung H.
AU - Nakajima, Atsushi
PY - 2006
Y1 - 2006
N2 - Amorphous iron or cobalt carbide nanoparticles with a carbon onion structure were produced using a pulsed laser ablation of metallocene powders at room temperature. While they are ferromagnetic at room temperature, they exhibit a drastic change in magnetic spin moments at 20-30 K. These magnetic properties are ascribed to a considerable magnetic contribution of superparamagnetism for the amorphous iron or cobalt carbide nanoparticles with a carbon onion and the origin of the magnetic properties is discussed.
AB - Amorphous iron or cobalt carbide nanoparticles with a carbon onion structure were produced using a pulsed laser ablation of metallocene powders at room temperature. While they are ferromagnetic at room temperature, they exhibit a drastic change in magnetic spin moments at 20-30 K. These magnetic properties are ascribed to a considerable magnetic contribution of superparamagnetism for the amorphous iron or cobalt carbide nanoparticles with a carbon onion and the origin of the magnetic properties is discussed.
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UR - http://www.scopus.com/inward/citedby.url?scp=33645767384&partnerID=8YFLogxK
U2 - 10.1063/1.2174116
DO - 10.1063/1.2174116
M3 - Article
VL - 99
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 6
M1 - 064302
ER -