首页> 外文期刊>Advanced Functional Materials >Response to 'Comment on 'High K Capacitors and OFET Gate Dielectrics from Self-Assembled BaTiO_3 and (Ba,Sr) TiO_3 Nanocrystals in the Superparaelectric Limit' - On the Superparaelectric State in BaTiO_3 Nanocrystals'
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Response to 'Comment on 'High K Capacitors and OFET Gate Dielectrics from Self-Assembled BaTiO_3 and (Ba,Sr) TiO_3 Nanocrystals in the Superparaelectric Limit' - On the Superparaelectric State in BaTiO_3 Nanocrystals'

机译:对“关于在超顺电极限内自组装的BaTiO_3和(Ba,Sr)TiO_3纳米晶体的高K电容器和OFET栅极电介质的评论”的回应-关于BaTiO_3纳米晶体的超顺电态

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摘要

We are grateful for this discussion and to the editor. The term superparaelectric is somewhat of an analogy with superpara-magnetism, considered different from paramagnetism because it occurs below the Curie temperature of the material. Due to the anisotropy there are two favorable low-energy states for the nanoparticle and an energy barrier to flipping between the states, described by the Neel-Arrhenius equation, giving a k_BT dependence. Although, at room temperature, thermal fluctuations tend to "erase" the appearance of a magnetic dipole, an external field can quickly take advantage of this inherent functionality.
机译:我们感谢这次讨论和编辑。术语“超顺电”在某种程度上类似于超顺磁性,被认为与顺磁性不同,因为它发生在材料的居里温度以下。由于各向异性,对于纳米粒子存在两个有利的低能态,并且存在通过Neel-Arrhenius方程描述的在这些态之间翻转的能垒,从而给出了k_BT依赖性。尽管在室温下,热波动趋于“消除”磁偶极子的出现,但外部磁场可以迅速利用这种固有功能。

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  • 来源
    《Advanced Functional Materials》 |2011年第17期|p.3212-3213|共2页
  • 作者

    Stephen OBrien;

  • 作者单位

    Department of Chemistry City College New York City University of New York, NY 10031;

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  • 正文语种 eng
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