• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >AFM stochastic analysis of surface twisted nanograin chains of iron oxide: a kinetic study
【24h】

AFM stochastic analysis of surface twisted nanograin chains of iron oxide: a kinetic study

机译：氧化铁表面扭曲纳米颗粒链的AFM随机分析：动力学研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We have studied the stochastic parameters of surface iron oxide nanograin chains, 97 nm in diameter and 2.4 mu m in length, prepared at different annealing temperatures, using atomic force microscopy (AFM) spectral analysis. In this regard, the roughness of the thin films including self-assembled twisted nanograin chains has been analysed and characterized using the height-height correlation function, the roughness exponent as well as the power spectrum density of the AFM profiles and their gradient, for the different annealing temperatures. The tip convolution effect on the stochastic parameters under study has also been investigated. The kinetics of the formation of nanograins on the film surface has been obtained using the AFM spectral analysis of the profiles and their gradient. The activation energy needed for the formation of surface nanograin chains was found to be 0.55 eV. It has been shown that the tip-surface interaction affects mainly the diffusion parameters obtained by using the surface roughness analysis of the profiles, while use of the surface roughness analysis of the gradient of the profiles results in a nearly independent tip convolution effect on the diffusion parameters. Hence, this work also provides a method for calculating the required activation energy for the formation of self-assembled nanostructures affecting the roughness of a surface.
机译：我们使用原子力显微镜（AFM）光谱分析方法研究了在不同退火温度下制备的直径为97 nm，长度为2.4μm的表面氧化铁纳米颗粒链的随机参数。在这方面，已使用高度-高度相关函数，粗糙度指数，AFM轮廓的功率谱密度及其梯度对包括自组装扭曲纳米颗粒链的薄膜的粗糙度进行了分析和表征。不同的退火温度。还研究了尖端卷积对所研究的随机参数的影响。使用AFM谱图及其梯度分析可以得到在薄膜表面形成纳米颗粒的动力学。发现形成表面纳米颗粒链所需的活化能为0.55eV。已经表明，尖端-表面相互作用主要影响通过使用轮廓的表面粗糙度分析获得的扩散参数，而使用轮廓的梯度的表面粗糙度分析导致对扩散几乎独立的尖端卷积效应参数。因此，这项工作还提供了一种计算所需活化能的方法，该活化能用于形成影响表面粗糙度的自组装纳米结构。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号