Anomalous conductance quantization in carbon nanotubes

被引：49

作者：

Biercuk, MJ ^{[1
]}

Mason, N

Martin, J

Yacoby, A

Marcus, CM

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] Weizmann Inst Sci, Dept Phys, Rehovot, Israel

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.94.026801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Conductance measurements of carbon nanotubes containing gated local depletion regions exhibit plateaus as a function of gate voltage, spaced by approximately 1e(2)/h, the quantum of conductance for a single (nondegenerate) mode. Plateau structure is investigated as a function of bias voltage, temperature, and magnetic field. We speculate on the origin of this surprising quantization, which appears to lack band and spin degeneracy.

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页数：4

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