Single- and few-electron dynamic quantum dots in a perpendicular magnetic field

S. J. Wright; A. L Thorn; M. D. Blumenthal; S. P. Giblin; M. Pepper; T. J. B. M. Janssen; M. Kataoka; J. D. Fletcher; G. A. C. Jones; C. A. Nicoll; Godfrey Gumbs; D. A. Ritchie

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Single- and few-electron dynamic quantum dots in a perpendicular magnetic field

机译：垂直磁场中的单电子和少电子动态量子点

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We present experimental studies of the current pumped through a dynamic quantum dot over a wide range of magnetic fields. At low fields we observe a repeatable structure indicating increased confinement of the electrons in the dynamic dot. At higher fields (B ＞ 5T), we observe a structure which changes markedly from device to device suggesting that in this regime the transport is sensitive to local disorder. The results are significant for the development of dynamic quantum dot pumps as quantum standards of electrical current.

机译：我们目前在宽范围的磁场中通过动态量子点泵浦电流的实验研究。在低场下，我们观察到可重复的结构，表明动态点中电子的约束增加。在更高的场（B＞ 5T），我们观察到一个结构随设备的变化而明显变化，这表明在这种情况下，运输对局部疾病很敏感。该结果对于开发动态量子点泵作为电流的量子标准具有重要意义。

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来源
《Journal of Applied Physics》 |2011年第10期|p.108-112|共5页
作者
S. J. Wright; A. L Thorn; M. D. Blumenthal; S. P. Giblin; M. Pepper; T. J. B. M. Janssen; M. Kataoka; J. D. Fletcher; G. A. C. Jones; C. A. Nicoll; Godfrey Gumbs; D. A. Ritchie;
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Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 OHE, United Kingdom;

Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 OHE, United Kingdom,National Physical Laboratory, Hampton Road, Teddington TW11 OLW, United Kingdom;

Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 OHE, United Kingdom,National Physical Laboratory, Hampton Road, Teddington TW11 OLW, United Kingdom;

National Physical Laboratory, Hampton Road, Teddington TW11 OLW, United Kingdom;

University College London, Torrington Place, London WC1E 7JE, United Kingdom;

National Physical Laboratory, Hampton Road, Teddington TW11 OLW, United Kingdom;

National Physical Laboratory, Hampton Road, Teddington TW11 OLW, United Kingdom;

National Physical Laboratory, Hampton Road, Teddington TW11 OLW, United Kingdom;

Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 OHE, United Kingdom;

Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 OHE, United Kingdom;

Department of Physics and Astronomy, Hunter College of the City University of New York,695 Park Avenue, New York, New York 10065 USA;

Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 OHE, United Kingdom;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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2. Generalized description of few-electron quantum dots at zero and nonzero magnetic fields [J] . Ciftja O Journal of Physics. Condensed Matter . 2007,第26期

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3. Few-Electron double-layer quantum dots in magnetic fields: energy spectrum of an artificial molecule [J] . Wenfang Xie, Ghuanyu Chen, D. L. Lin Modern Physics Letters, B. Condensed Matter Physics, Statistical Physics, Applied Physics . 1999,第9a10期

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5. Terahertz Absorption in InGaAs quantum posts and exciton tuning in indium arsenide/gallium arsenide quantum dots by electromagnetic fields. [D] . Truong, Tuan Anh. 2012

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6. Transport through a strongly coupled graphene quantum dot in perpendicular magnetic field [O] . Johannes Güttinger, Christoph Stampfer, Tobias Frey, 2011

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7. Single- and few-electron dynamic quantum dots in a perpendicular magnetic field [O] . Wright, S. J., Thorn, A. L., Blumenthal, M. D., 2010

机译：垂直中的单电子和少电子动态量子点磁场

Single- and few-electron dynamic quantum dots in a perpendicular magnetic field

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