Abstract The resistivity and magnetoresistance of multi-walled carbon nanotubes with different degrees of structural perfection in the temperature interval from 4.2 K to 293 K and in the magnetic field up to 2 T are investigated. The revealed anomalies of the temperature and field dependences of resistivity of multi-walled carbon nanotubes are analyzed in the terms of charge carrier’s weak localization and interaction effects for two-dimensional systems. For carbon nanotubes with different degrees of structural perfection diffusion coefficient, charge carrier’s interaction parameter and the value of the Fermi energy are estimated. It is shown that the anomalies found in the resistivity and magnetoresistance for the defective multi-walled carbon nanotubes are related with the manifestation of the weak localization effect, while for the multi-walled carbon nanotubes of the perfect structure these anomalies are explained by the charge carriers interaction effect.

中文翻译：

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不同结构完善程度碳纳米管的输运特性

摘要 研究了具有不同结构完美程度的多壁碳纳米管在4.2 K~293 K的温度区间和高达2 T的磁场中的电阻率和磁阻。从电荷载流子对二维系统的弱定域和相互作用效应方面分析了多壁碳纳米管电阻率的温度和场依赖性的揭示异常。对于具有不同结构完美扩散系数的碳纳米管，估计了电荷载流子的相互作用参数和费米能的值。结果表明，缺陷多壁碳纳米管的电阻率和磁阻异常与局域效应弱的表现有关，