Institut Néel, CNRS and Université J. Fourier, BP 166, 38042 Grenoble Cedex 9, France.
ACS Nano. 2011 Mar 22;5(3):2348-55. doi: 10.1021/nn2000349. Epub 2011 Feb 23.
We report on low-temperature electrical transport measurements of single-walled carbon nanotubes (SWNTs) filled in their inner core with one-dimensional cobalt nanoparticles. The electrical transport properties of the hybrid devices are strongly sensitive to the magnetization reversal of isolated magnetic nanoparticles, resulting in strong hysteretic variations of the magnetoconductance. The magnetic anisotropy of a one-dimensional encapsulated cobalt nanoparticle is investigated, establishing an unusually strong dominating contribution of magnetic surface anisotropy.
我们报告了填充有一维钴纳米粒子的单壁碳纳米管（SWNTs）的低温电输运测量结果。混合器件的输运性质对孤立磁性纳米粒子的磁化反转非常敏感，导致磁电导的强烈滞后变化。研究了一维封装钴纳米粒子的各向异性，确定了磁各向异性表面的异常强烈主导贡献。
