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Electron scattering by Friedel oscillations in carbon nanotubes

Nano Research 2022年第2期15卷 889-897页

作者： Takumi Inaba Takahiro Morimoto Satoshi Yamazaki toshiya okazaki CNT-Application Research Center National Institute of Advanced Industrial Science and TechnologyTsukuba 305-8565Japan Research Association of High-Throughput Design and Development for Advanced Functional Materials Tsukuba 305-8565Japan

Multi-walled carbon nanotube networks were confirmed to exhibit a linear decrease in resistivity with increasing temperature from 100 to above 400 *** linearity was explained using a defect scattering model that involved Friedel oscillations(that is,electron-electron interactions).The applicability of this model,which was originally proposed for graphene,to carbon nanotubes was assessed based on a comparison of various experimental *** in the slopes of the resistivity-temperature plots following the introduction of defects,as well as an effect of charge concentration on the slope were key predictions of this *** results obtained from few-walled carbon nanotube networks are also *** the literature,linear resistivity-temperature plots were obtained from other graphene derivatives,indicating that the linearity originates from the hexagonal symmetry of these *** present work also indicated a relationship between the appearance of linearity and negative magnetoresistance above 100 *** on a mechanism incorporating scattering in association with Friedel oscillations and conventional electron conduction models,the universality of resistivity-temperature plots obtained from carbon nanotube networks is introduced.

关键词： carbon nanotube electron transport electron-electron interaction Friedel oscillations magnetoresistance

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