Magnetic and electronic properties of multiwall carbon nanotubes

被引：56

作者：

Likodimos, V ^{[1
]}

Glenis, S

Guskos, N

Lin, CL

机构：

[1] Natl Tech Univ Athens, Dept Phys, Fac Sci Appl, GR-15780 Athens, Greece

[2] Univ Athens, Dept Phys, GR-15784 Athens, Greece

[3] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.68.045417

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multiwall carbon nanotubes were studied by dc magnetization and electron spin resonance (ESR) measurements. Hole doping is inferred from both the high-field dc susceptibility and ESR parameters complying favorably with the band model of two-dimensional graphite. Paramagnetic deviations are evinced on the diamagnetic susceptibility at weak fields and low temperatures, conforming qualitatively with the Aharonov-Bohm effect on the energy gap for magnetic field parallel to the tube axis. Comparison with theoretical predictions for ensembles of carbon nanotubes reveals appreciable differences, indicative of the diverse distribution of nanotubes as well as the presence of active doping.

引用

页数：6

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