An Overview of Investigation for Ferrite Magnetic Nanomaterial
An Overview of Investigation for Ferrite Magnetic Nanomaterial
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DOI：
10.4028/www.scientific.net/ssp.271.51
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发表时间：
2018-01
期刊：
影响因子：
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通讯作者：
D. Sangaa;B. Khongorzul;E. Uyanga;N. Jargalan;Namsrai Tsogbadrakh;H. Hirazawa
中科院分区：
文献类型：
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作者：
D. Sangaa;B. Khongorzul;E. Uyanga;N. Jargalan;Namsrai Tsogbadrakh;H. Hirazawa
近年来，由于铁氧体磁性纳米材料在医学和生物学领域的广泛应用，引起了人们极大的兴趣。研究了在交流磁场中具有高发热能力的尖晶石型铁氧体粉末样品在肿瘤热疗中的应用。铁氧体的这些性质强烈地取决于它们的化学组成、离子分布、自旋取向和一般制备方法以及晶体结构，特别是材料的性质。在这项研究中，铁氧体磁结构的几个样品进行了研究，中子衍射。在密度泛函理论的框架下，通过第一性原理计算，对磁性材料的发热机理以及铁氧体-尖晶石型结构的电子态和磁态进行了理论解释。
In recent time, interest to ferrite magnetic nanomaterials has considerably grown mainly due to their much promising medical and biological applications. The spinel ferrite powder samples having high heat generation ability in AC magnetic field was studied for application to hyperthermia treatment of cancer tumor. These properties of ferrites are strongly depending on their chemical composition, ion distribution, spin orientation and method of preparation in general and crystal structure in particular nature of the material. In this study, several samples of ferrite magnetic structures were investigated by neutron diffraction. The explanation of the mechanism to occurs the heat generation ability in the magnetic materials and the electronic and magnetic states of ferrite-spinel – type structures were theoretically defined by the first-principles calculations within the framework of DFT.