Mg5C60：一种稳定的二维导电聚合物
Mg5C60: A stable two dimensional conducting polymer
摘要：
本文对二维富勒烯聚合物Mg 5C 60的结构、光谱、导电和磁性进行了研究。聚合物相在823 K的极高温度下是稳定的。红外和拉曼光谱研究表明，形成的富勒烯离子和可能的Mg-C60共价键之间的单键。Mg 5C 60在环境温度下是金属，如电子自旋共振和微波电导率测量所示。在200 K以下从金属态到顺磁绝缘体态的平稳转变归因于结构无序驱动的安德森局域化。
英文摘要：
We present a study on the structural, spectroscopic, conducting and magnetic properties of Mg5C60, a two dimensional (2D) fulleride polymer. The polymer phase is stable up to the exceptionally high temperature of 823 K. Infrared and Raman studies suggest the formation of single bonds between fulleride ions and possibly Mg - C60 covalent bonds. Mg5C60 is a metal at ambient temperature as shown by electron spin resonance and microwave conductivity measurements. The smooth transition from a metallic to a paramagnetic insulator state below 200 K is attributed to Anderson localization driven by structural disorder.
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