Excited state spectroscopy in carbon nanotube double quantum dots

被引：64

作者：

Sapmaz, Sami ^{[1
]}

Meyer, Carola ^{[1
]}

Beliczynski, Piotr ^{[1
]}

Jarillo-Herrero, Pablo ^{[1
]}

Kouwenhoven, Leo P. ^{[1
]}

机构：

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

来源：

NANO LETTERS | 2006年 / 6卷 / 07期

关键词：

D O I：

10.1021/nl052498e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on low-temperature measurements in a fully tunable carbon nanotube double quantum dot. A new fabrication technique has been used for the top-gates in order to avoid covering the whole nanotube with an oxide layer as in previous experiments. The top-gates allow us to form single dots and control the coupling between them, and we observe 4-fold shell filling. We perform inelastic transport spectroscopy via the excited states in the double quantum dot, a necessary step toward the implementation of new microwave-based experiments.

引用

页码：1350 / 1355

页数：6

共 30 条

[1] Kondo effect in carbon nanotubes at half filling -: art. no. 235419 [J].

Babic, B ;

Kontos, T ;

Schönenberger, C .

PHYSICAL REVIEW B, 2004, 70 (23) :1-9

[2] Gate-defined quantum dots on carbon nanotubes [J].

Biercuk, MJ ;

Garaj, S ;

Mason, N ;

Chow, JM ;

Marcus, CM .

NANO LETTERS, 2005, 5 (07) :1267-1271

[3] Electron cotunneling in a semiconductor quantum dot [J].

De Franceschi, S ;

Sasaki, S ;

Elzerman, JM ;

van der Wiel, WG ;

Tarucha, S ;

Kouwenhoven, LP .

PHYSICAL REVIEW LETTERS, 2001, 86 (05) :878-881

[4]

Elzerman JM, 2004, NATURE, V430, P431, DOI 10.1039/nature02693

[5] Hyperfine-mediated transitions between a Zeeman split doublet in GaAs quantum dots: The role of the internal field [J].

Erlingsson, SI ;

Nazarov, YV .

PHYSICAL REVIEW B, 2002, 66 (15) :1-7

[6] Analysis of negative differential conductance in a two-island Coulomb blockade system by a polytope approximation in phase space [J].

Evans, GJ ;

Mizuta, H .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (06) :3124-3129

[7] Spontaneous emission spectrum in double quantum dot devices [J].

Fujisawa, T ;

Oosterkamp, TH ;

van der Wiel, WG ;

Broer, BW ;

Aguado, R ;

Tarucha, S ;

Kouwenhoven, LP .

SCIENCE, 1998, 282 (5390) :932-935

[8] Transient current spectroscopy of a quantum dot in the Coulomb blockade regime [J].

Fujisawa, T ;

Tokura, Y ;

Hirayama, Y .

PHYSICAL REVIEW B, 2001, 63 (08)

[9] Phonon-induced decay of the electron spin in quantum dots [J].

Golovach, VN ;

Khaetskii, A ;

Loss, D .

PHYSICAL REVIEW LETTERS, 2004, 93 (01) :016601-1

[10] Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates [J].

Hanson, R ;

van Beveren, LHW ;

Vink, IT ;

Elzerman, JM ;

Naber, WJM ;

Koppens, FHL ;

Kouwenhoven, LP ;

Vandersypen, LMK .

PHYSICAL REVIEW LETTERS, 2005, 94 (19)

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