Magnetic Response of Hydrothermally Prepared Self-Assembled Co3O4 Nano-platelets
Magnetic Response of Hydrothermally Prepared Self-Assembled Co3O4 Nano-platelets
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DOI：
10.1007/s11664-014-3403-z
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发表时间：
2014
影响因子：
2.1
通讯作者：
M. Dar;M. Dar;S. Nam;J. Kim;I. Ahmad;B. Cho;Won Bae Kim
中科院分区：
文献类型：
--
作者：
M. Dar;M. Dar;S. Nam;J. Kim;I. Ahmad;B. Cho;Won Bae Kim
在本通讯中，我们报告了一个强大的亚铁磁性行为的自组装Co3O4纳米片，这很可能是源于独特的Co3O4结构的内在自旋结构。微球状结构由缠结在一起以形成有组织的网络的纳米片组成。这些异常的亚铁磁性可以合理化的假设，其中一个钴3+和一个钴2+离子之间的八面体和四面体网站切换。粉末样品也通过x射线衍射和超导量子接口器件磁强计进行了表征。
In the present communication, we report a strong ferrimagnetic behavior of self-assembled Co3O4nano-platelets, which most likely originates from the intrinsic spin structure of the unique Co3O4structure. The microsphere-like structures are composed of nano-platelets that are entangled together to form the organized network. These anomalous ferrimagnetic properties can be rationalized by supposing that one of the Co3+and one of the Co2+ions are switched between the octahedral and tetrahedral sites. The powder sample was also characterized by x-ray diffraction and superconducting quantum interface device magnetometry.