DySc2N@C80 Single-Molecule Magnetic Metallofullerene Encapsulated in a Single-Walled Carbon Nanotube
DySc2N@C80 Single-Molecule Magnetic Metallofullerene Encapsulated in a Single-Walled Carbon Nanotube
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DOI：
10.1021/jacs.8b06983
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发表时间：
2018-09-05
影响因子：
15
通讯作者：
Yamashita, Masahiro
中科院分区：
文献类型：
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作者：
Nakanishi, Ryo;Satoh, Jyunya;Yamashita, Masahiro
DySc2N@C-80是一种具有单分子磁性的金属富勒烯。在这项工作中，我们将DySc2N@C80 smm封装到单壁碳纳米管（SWCNTs）的内部一维纳米空间中。通过透射电镜，清晰地观察到“豆荚”结构。根据磁场相关的测量，DySc2N@C-80显示smm即使在SWCNTs内部也具有逐步滞后特性，矫顽力从0.5增加到4 kOe。此外，在没有外加磁场的情况下，材料的磁化强度表现出缓慢的弛豫。该系统是smm被封装在SWCNTs中的第一个例子，该系统可用于未来的分子自旋电子学器件。
DySc2N@C-80 is an endohedral metallofullerene showing single-molecule magnet (SMM) behavior. In this work, we encapsulated DySc2N@C80 SMMs into the internal one-dimensional nanospace of single-walled carbon nanotubes (SWCNTs). Using transmission electron microscopy, "peapod" structures were clearly observed. From magnetic field dependent measurements, DySc2N@C-80 showed stepwise hysteresis characteristic of SMMs even inside the SWCNTs, and the coercivity increased from 0.5 to 4 kOe. In addition, it showed slow relaxation of the magnetization without an applied external magnetic field. This system is the first example where SMMs have been encapsulated in SWCNTs, and this system could be used in future molecular-spintronics devices.