| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
|
|
|
|
Preparation, Morphology Transformation and Magnetic Behavior of Co3O4 Nano-Leaves |
| MENG Ling-Rong1, CHEN Wei-Meng2, CHEN Chin-Ping2, ZHOU He-Ping1, PENG Qing1** |
1State Key Laboratory of New Ceramics and Fine Processing, Department of Chemistry and Department of Materials Science and Engineering, Tsinghua University, Beijing 100084
2Department of Physics, Peking University, Beijing 100871
|
|
| Cite this article: |
|
MENG Ling-Rong, CHEN Wei-Meng, CHEN Chin-Ping et al 2010 Chin. Phys. Lett. 27 128101 |
|
|
|
|
Abstract A series of cubic phase Co3O4 nano−leaves were prepared via a combined approach of solution reaction and calcination. According to x-ray diffraction and electron microscopy, we find that the Co3O4 grain size increases with calcination temperature. This can induce many gaps in the products. M–T and M–H magnetization measurements reveal the typical antiferromagnetic behavior of nano−leaves. The effective moments of the samples prepared at 300, 400 and 500°C are 5.6, 5.8 and 5.7 μB per formula unit (FU), respectively, larger than the bulk value of 4.14 μB/FU.
|
| Keywords:
81.07.Bc
81.40.Gh
61.72.Mm
75.75.Cd
|
|
|
Received: 18 October 2010
Published: 23 November 2010
|
|
| PACS: |
81.07.Bc
|
(Nanocrystalline materials)
|
| |
81.40.Gh
|
(Other heat and thermomechanical treatments)
|
| |
61.72.Mm
|
(Grain and twin boundaries)
|
| |
75.75.Cd
|
(Fabrication of magnetic nanostructures)
|
|
|
|
|
|
[1] Dutta P, Seehra M S, Thota S and Kumar J 2008 J. Phys.: Condens. Matter 20 15218
[2] He L, Chen C, Wang N, Zhou W and Guo L 2007 J. Appl. Phys. 102 103911
[3] Wang R M, Liu C M, Zhang H Z, Chen C P, Guo L, Xu H B and Yang S H 2004 Appl. Phys. Lett. 85 2080
[4] Tüysüz H, Comotti M and Schüth F 2008 Chem. Commun. 4022
[5] Hu L H, Peng Q and Li Y D 2008 J. Am. Chem. Soc. 130 16136
[6] Xie X W, Li Y, Liu ZQ, Haruta M and Shen W J 2009 Nature 458 746
[7] Hu L H, Sun K Q, Peng Q, Xu B Q and Li Y D 2010 Nano Res. 3 363
[8] Li C C, Yin X M, Wang T H and Zeng H C 2009 Chem. Mater. 21 4984
[9] Geng B, Zhan F, Fang C and Yu N 2008 J. Mater. Chem. 18 4977
[10] Li W Y, Xu L N and Chen J 2005 Adv. Funct. Mater. 15 851
[11] Tian L, Zou H L, Fu J X, Yang X F, Wang Y, Guo H L, Fu X H, Liang C L, Wu M M, Shen P K and Gao Q M 2010 Adv. Funct. Mater. 20 617
[12] Li Y G, Tan B and Wu Y Y 2008 Nano Lett. 8 265
[13] Lou X W, Deng D, Lee J Y, Feng J and Archer L A 2008 Adv. Mater. 20 258
[14] Zhan F M, Geng B Y and Guo Y J 2009 Chem. Eur. J. 15 6169
[15] Xu Y Y, Wang C Q, Sun Y Q, Zhang G Y and Gao D Z 2010 Mater. Lett. 64 1275
[16] Jiang J and Li L C 2007 Mater. Lett. 61 4894
[17] Yue W B, Hill A H, Harrison A and Zhou W Z 2007 Chem. Commun. 2518
[18] Roth W L 1964 J. Phys. Chem. Solids 25 1
[19] Sōshin Chikazumi 1997 Phys. Ferromagnetism 2nd edn (Oxford: Oxford University) p 139
[20] Chen W M, Chen C P, and Guo L 2010 J. Appl. Phys. 108 073907
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
