Abstract
The local structure around Ni ion for Ni(OH)2 monolayer nanocluster (Ni-MNC) was studied by Ni K-edge X-ray absorption fine-structure spectroscopy (XAFS). XAFS analyses were consistent with the monolayer formation of the nanoclusters. We found that the Ni-Ni distance in the monolayer plane exhibits a significant contraction compared to that in bulk Ni(OH)2, while the spacing between the Ni and O layers are rather expanded. Such a structural change is discussed in relation to the magnetic property of the Ni-MNC, which exhibits ferromagnetism below 10 K with a higher exchange interaction between the in-plane Ni atoms than that of the bulk Ni(OH) 2.
| Original language | English |
|---|---|
| Pages (from-to) | 345-350 |
| Number of pages | 6 |
| Journal | Chemical Physics Letters |
| Volume | 379 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 2003 Sep 26 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Atomic and Molecular Physics, and Optics
Cite this
X-ray absorption fine-structure study on the Ni(OH)2 monolayer nanoclusters. / Ichiyanagi, Yuko; Kondoh, Hiroshi; Yokoyama, Toshihiko; Okamoto, Kaoru; Nagai, Kensuke; Ohta, Toshiaki.
In: Chemical Physics Letters, Vol. 379, No. 3-4, 26.09.2003, p. 345-350.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - X-ray absorption fine-structure study on the Ni(OH)2 monolayer nanoclusters
AU - Ichiyanagi, Yuko
AU - Kondoh, Hiroshi
AU - Yokoyama, Toshihiko
AU - Okamoto, Kaoru
AU - Nagai, Kensuke
AU - Ohta, Toshiaki
PY - 2003/9/26
Y1 - 2003/9/26
N2 - The local structure around Ni ion for Ni(OH)2 monolayer nanocluster (Ni-MNC) was studied by Ni K-edge X-ray absorption fine-structure spectroscopy (XAFS). XAFS analyses were consistent with the monolayer formation of the nanoclusters. We found that the Ni-Ni distance in the monolayer plane exhibits a significant contraction compared to that in bulk Ni(OH)2, while the spacing between the Ni and O layers are rather expanded. Such a structural change is discussed in relation to the magnetic property of the Ni-MNC, which exhibits ferromagnetism below 10 K with a higher exchange interaction between the in-plane Ni atoms than that of the bulk Ni(OH) 2.
AB - The local structure around Ni ion for Ni(OH)2 monolayer nanocluster (Ni-MNC) was studied by Ni K-edge X-ray absorption fine-structure spectroscopy (XAFS). XAFS analyses were consistent with the monolayer formation of the nanoclusters. We found that the Ni-Ni distance in the monolayer plane exhibits a significant contraction compared to that in bulk Ni(OH)2, while the spacing between the Ni and O layers are rather expanded. Such a structural change is discussed in relation to the magnetic property of the Ni-MNC, which exhibits ferromagnetism below 10 K with a higher exchange interaction between the in-plane Ni atoms than that of the bulk Ni(OH) 2.
UR - http://www.scopus.com/inward/record.url?scp=0141606706&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0141606706&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2003.08.051
DO - 10.1016/j.cplett.2003.08.051
M3 - Article
AN - SCOPUS:0141606706
VL - 379
SP - 345
EP - 350
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 3-4
ER -