Electronic transport spectroscopy of carbon nanotubes in a magnetic field

被引：83

作者：

Jarillo-Herrero, P ^{[1
]}

Kong, J ^{[1
]}

van der Zant, HSJ ^{[1
]}

Dekker, C ^{[1
]}

Kouwenhoven, LP ^{[1
]}

De Franceschi, S ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.94.156802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report magnetic field spectroscopy measurements in carbon nanotube quantum dots exhibiting fourfold shell structure in the energy level spectrum. The magnetic field induces a large splitting between the two orbital states of each shell, demonstrating their opposite magnetic moment and determining transitions in the spin and orbital configuration of the quantum dot ground state. We use inelastic cotunneling spectroscopy to accurately resolve the spin and orbital contributions to the magnetic moment. A small coupling is found between orbitals with opposite magnetic moment leading to anticrossing behavior at zero field.

引用

页数：4

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