Studies of the Magnetic Properties and Specific Absorption of Mn0.3Zn0.7Fe2O4 Nanoparticles

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• 作者：Pham Thanh Phong ; P.H. Nam ; Do Hung Manh ; D.K. Tung…
• 关键词：Mn–Zn ferrite spinel ; hydrothermal ; nanoparticle ; superspin glass ; AC losses ; hyperthermia ; intrinsic loss power
• 刊名：Journal of Electronic Materials
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：44
• 期：1
• 页码：287-294
• 全文大小：755 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Optical and Electronic Materials
  Characterization and Evaluation Materials
  Electronics, Microelectronics and Instrumentation
  Solid State Physics and Spectroscopy
  
• 出版者：Springer Boston
• ISSN：1543-186X

文摘

Nanosized mixed ferrite Mn0.3Zn0.7Fe2O4 was prepared by a hydrothermal method at pH?11 and 180°C. XRD analysis showed that the material had the characteristic spinel structure with average particle size 14?nm. The real part of the AC susceptibility clearly proved the ferrite had spin glass like behavior. Magnetic inductive heating studies were performed at 236?kHz with magnetic field amplitude 50-0 Oe. The specific absorption (SA) was investigated by use of linear response theory. The experimental results were in good agreement with theoretical predictions. Moreover, the intrinsic loss power (ILP) was calculated from SA values. It is believed that Mn0.3Zn0.7Fe2O4 nanoparticles with a high ILP will be useful for in situ hyperthermia treatment of cancer.