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γ-MnO_2纳米六方片的磁性特性研究

Magnetic Properties of γ-MnO_2 Hexagonal Nanoplates
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摘要 研究了γ-MnO2纳米六方片的磁性特性.通过水热自加压方法,合成了新颖的碟型γ-MnO2纳米六方片.使用超导量子干涉仪磁强计对两维的γ-MnO2纳米材料的磁性质进行了测试和分析.结果表明,在1.8K时,γ-MnO2纳米六方片表现出反铁磁性的特性,在78K的低温区,样品表现为由顺磁性向反铁磁性转变的特点. The magnetic properties of y-MnO2 hexagonal nanosheets was studied. The novel hexagonal nanoplates structure of y-manganese dioxide was synthesized by a hydrothermal chemical method. The magnetic properties of these two-dimensional y-MnO2 nanomaterials were investigated by a quantum design superconducting quantum interference device （SSQUD） magnetometer and analyzed. It is observed that those two-dimensional y-MnO2 hexagonal nanoplates exhibited an antiferromagnetic properties at 1.8 K,and at the 78K of low temperature region, the magnetic properties of the products showed a transition characteristics from a paramagnetic behavior to the antiferromagnetic.
作者 郑德山
机构地区 西安工业大学材料与化工学院
出处 《西安工业大学学报》 CAS 2012年第6期465-469,共5页 Journal of Xi’an Technological University
关键词 二氧化锰 水热合成 纳米六方片 磁性 manganese dioxide hydrothermal synthesis hexagonal nanoplates magnetic
分类号 TB383.1 [一般工业技术—材料科学与工程]
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参考文献24

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共引文献7

西安工业大学学报
2012年 第6期

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