Abstract
The appearance of ferromagnetism in the surface regime of Pd nanoparticles was recently reported [Phys. Rev. Lett. 91, 197201 (2003)]. To experimentally confirm the surface magnetism, the effects of O2 gas adsorption on the Pd nanoparticles are studied based on the measurements of the coverage and magnetization. The surface ferromagnetism was weakened in the samples fully covered with O2 gas. However, the ferromagnetic moment remained after the exposure to O2 gas. This result shows the ferromagnetism existing in the internal regime in addition to the surface magnetism.
| Original language | English |
|---|---|
| Pages (from-to) | 439-442 |
| Number of pages | 4 |
| Journal | e-Journal of Surface Science and Nanotechnology |
| Volume | 4 |
| DOIs | |
| Publication status | Published - 2006 Apr 25 |
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Keywords
- Ferromagnetism
- Magnetic measurements
- Magnetic phenomena
- Magnetic properties of nanostructures
- Nanoparticles
- Oxygen
- Palladium
- Powders
ASJC Scopus subject areas
- Surfaces, Coatings and Films
- Materials Science (miscellaneous)
Cite this
Gas adsorption on the surface of ferromagnetic Pd nanoparticles. / Oba, Yojiro; Sato, Tetsuya; Shinohara, Takenao.
In: e-Journal of Surface Science and Nanotechnology, Vol. 4, 25.04.2006, p. 439-442.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Gas adsorption on the surface of ferromagnetic Pd nanoparticles
AU - Oba, Yojiro
AU - Sato, Tetsuya
AU - Shinohara, Takenao
PY - 2006/4/25
Y1 - 2006/4/25
N2 - The appearance of ferromagnetism in the surface regime of Pd nanoparticles was recently reported [Phys. Rev. Lett. 91, 197201 (2003)]. To experimentally confirm the surface magnetism, the effects of O2 gas adsorption on the Pd nanoparticles are studied based on the measurements of the coverage and magnetization. The surface ferromagnetism was weakened in the samples fully covered with O2 gas. However, the ferromagnetic moment remained after the exposure to O2 gas. This result shows the ferromagnetism existing in the internal regime in addition to the surface magnetism.
AB - The appearance of ferromagnetism in the surface regime of Pd nanoparticles was recently reported [Phys. Rev. Lett. 91, 197201 (2003)]. To experimentally confirm the surface magnetism, the effects of O2 gas adsorption on the Pd nanoparticles are studied based on the measurements of the coverage and magnetization. The surface ferromagnetism was weakened in the samples fully covered with O2 gas. However, the ferromagnetic moment remained after the exposure to O2 gas. This result shows the ferromagnetism existing in the internal regime in addition to the surface magnetism.
KW - Ferromagnetism
KW - Magnetic measurements
KW - Magnetic phenomena
KW - Magnetic properties of nanostructures
KW - Nanoparticles
KW - Oxygen
KW - Palladium
KW - Powders
UR - http://www.scopus.com/inward/record.url?scp=33646376953&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33646376953&partnerID=8YFLogxK
U2 - 10.1380/ejssnt.2006.439
DO - 10.1380/ejssnt.2006.439
M3 - Article
AN - SCOPUS:33646376953
VL - 4
SP - 439
EP - 442
JO - e-Journal of Surface Science and Nanotechnology
JF - e-Journal of Surface Science and Nanotechnology
SN - 1348-0391
ER -