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
N1 - Funding Information:
The authors wish to thank Prof. H. Hoffmann and Ms. R. Fischer of University of Regensburg for taking TEM images of the Ni-MNC. Useful discussions with Prof. Y. Kimishima of Yokohama National University are also appreciated. This study was partially supported by Japan Society for the Promotion of Science Grant-in Aid for Scientific Research (No. 12650008) and performed under the approval of the Photon Factory Program Advisory Committee (PF PAC No. 2001G318).
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
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.
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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 -