Multiwall carbon nanotubes as quantum dots -: art. no. 156801

被引：165

作者：

Buitelaar, MR ^{[1
]}

Bachtold, A ^{[1
]}

Nussbaumer, T ^{[1
]}

Iqbal, M ^{[1
]}

Schönenberger, C ^{[1
]}

机构：

[1] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.88.156801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the differential conductance of individual multiwall carbon nanotubes. Coulomb blockade and energy level quantization are observed. The electron levels are nearly fourfold degenerate (including spin) and their evolution in magnetic field (Zeeman splitting) agrees with a g factor of 2. In zero magnetic field the sequential filling of states evolves with spin S according to S = 0 --> 1/2 --> 0.... A Kondo enhancement of the conductance is observed when the number of electrons on the tube is odd.

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