Magnetic and magnetostrictive behavior of Dy~(3+) doped CoFe_2O_4 single crystals grown by flux method

Rahul C. Kambale; K.M. Song; C.J. Won; K.D. Lee; N. Hur

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Magnetic and magnetostrictive behavior of Dy~(3+) doped CoFe_2O_4 single crystals grown by flux method

机译：通量法生长的Dy〜（3+）掺杂CoFe_2O_4单晶的磁和磁致伸缩行为

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We studied the effect of Dy~(3+) content on the magnetic properties of cobalt ferrite single crystal. The single crystals of CoFe_(1.9)Dy_(0.1)O_4 were grown by the flux method using Na_2B_40_7.10 H_20 (Borax) as a solvent (flux). The black and shiny single crystals were obtained as a product. The X-ray diffraction analysis at room temperature confirmed the spinel cubic structure with lattice constant a=8.42 A of the single crystals. The compositional analysis endorses the presence of constituents Co, Fe and Dy elements after sintering at 1300℃ within the final structure. The magnetic hysteresis measurements at various temperatures viz. 10 K, 100 K, 200 K and 300 K reveal the soft ferrimagnetic nature of the single crystal than that of for pure CoFe_2O_4. The observed saturation magnetization (M_s) and coercivity (H_c) are found to be lower than that of pure CoFe_2O_4 single crystal. The magnetostriction (λ) measurement was carried out along the [001] direction. The magnetic measurements lead to conclude that the present single crystals can be used for magneto-optic recording media.

机译：研究了Dy〜（3+）含量对钴铁氧体单晶磁性能的影响。使用Na_2B_40_7.10 H_20（Borax）作为溶剂（助熔剂），通过助熔剂方法生长CoFe_（1.9）Dy_（0.1）O_4的单晶。获得黑色和有光泽的单晶作为产物。室温下的X射线衍射分析证实了具有单晶晶格常数a ＝ 8.42A的尖晶石立方结构。成分分析表明在最终结构中在1300℃烧结后，存在Co，Fe和Dy元素。在各种温度下的磁滞测量。与纯CoFe_2O_4相比，10 K，100 K，200 K和300 K揭示了单晶的软亚铁磁性。发现观察到的饱和磁化强度（M_s）和矫顽力（H_c）低于纯CoFe_2O_4单晶。沿着[001]方向进行磁致伸缩（λ）测量。磁性测量得出的结论是，本发明的单晶可以用于磁光记录介质。

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来源
《Journal of Crystal Growth》 |2012年第1期|p.171-174|共4页
作者
Rahul C. Kambale; K.M. Song; C.J. Won; K.D. Lee; N. Hur;
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作者单位

Department of Physics, inha University, Incheon 402-751, Republic of Korea;

Department of Physics, inha University, Incheon 402-751, Republic of Korea;

Department of Physics, inha University, Incheon 402-751, Republic of Korea;

Department of Physics, inha University, Incheon 402-751, Republic of Korea;

Department of Physics, inha University, Incheon 402-751, Republic of Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
A1. magnetic fields; A2. growth from high temperature; solutions; A2. single crystal growth; B2. magnetic materials;

机译：A1。磁场;A2。高温生长;解决方案;A2。单晶生长B2。磁性材料;

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Magnetic and magnetostrictive behavior of Dy~(3+) doped CoFe_2O_4 single crystals grown by flux method

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