TITLE

Orbital motion of metallic carbon nanotubes in an axial magnetic field

AUTHOR(S)
Jie Jiang; Jinming Dong; Xing, D.Y.
PUB. DATE
December 2003
SOURCE
Applied Physics Letters;12/29/2003, Vol. 83 Issue 26, p5515
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
It is found that the orbital effect of a single-wall carbon nanotube quantum dot with rather longer length in the axial magnetic field can become the same order as the Zeeman one or even exceed it for the states nearest to the Fermi level. We predict that the spin singlet–triplet transition can be driven almost entirely by the orbital effect in the nanotube quantum dot. Thus, a type of Kondo effect realized by coupling the singlet state to all triplet states may also be observed in the nanotubes. © 2003 American Institute of Physics.
ACCESSION #
11753254

 

Related Articles

  • Coulomb blockade of electron transport in a ZnO quantum-dot solid. Roest, Aarnound L.; Kelly, John J.; Vanmaekelbergh, Daniël // Applied Physics Letters;12/29/2003, Vol. 83 Issue 26, p5530 

    The temperature dependence of electron transport was studied in an assembly of ZnO quantum dots. The number of electrons per quantum dot was controlled by the electrochemical potential. For assemblies permeated with organic electrolyte solutions, the electron conductance measured in the linear...

  • Exciton spin relaxation time in quantum dots measured by continuous-wave photoluminescence spectroscopy. Mackowski, S.; Nguyen, T.A.; Jackson, H.E.; Smith, L.M.; Kossut, J.; Karczewski, G. // Applied Physics Letters;12/29/2003, Vol. 83 Issue 26, p5524 

    We demonstrate a method of measuring the exciton spin relaxation time in semiconductor nanostructures by continuous-wave photoluminescence. We find that for self-assembled CdTe quantum dots (QDs) the degree of circular polarization of emission is larger when exciting polarized excitons into the...

  • Spin-flip mesoscopic transport through a quantum dot coupled to carbon nanotube terminals. Zhao, H.-K.; Zhao, L.-N. // European Physical Journal B -- Condensed Matter;Sep2005, Vol. 47 Issue 2, p295 

    We investigate mesoscopic transport through a system that consists of a central quantum dot (QD) and two single-wall carbon nanotube (SWCN) leads in the presence of a rotating magnetic field. The spin-flip effect is induced by the rotating magnetic field, and the tunnelling current is...

  • Fast initial qubit dephasing and the influence of substrate dimensions on error correction rates. Doll, R.; H�nggi, P.; Kohler, S.; Wubs, M. // European Physical Journal B -- Condensed Matter;Apr2009, Vol. 68 Issue 4, p523 

    Keeping single-qubit quantum coherence above some threshold value not far below unity is a prerequisite for fault-tolerant quantum error correction (QEC). We study the initial dephasing of solid-state qubits in the independent-boson model, which describes well recent experiments on quantum dot...

  • Transport through a double barrier in Large Radius Carbon Nanotubes with a transverse magnetic field. Bellucci, S.; Onorato, P. // European Physical Journal B -- Condensed Matter;Aug2006, Vol. 52 Issue 4, p469 

    We discuss the Luttinger Liquid behaviour of Large Radius Carbon Nanotube e.g. the Multi Wall ones (MWNT), under the action of a transverse magnetic field B. Our results imply a reduction with B in the value of the bulk critical exponent, αbulk, for the tunneling density of states, which is...

  • Tunable Orbital Pseudospin and Multi-level Kondo Effect in Carbon Nanotubes. Jarillo-Herrero, Pablo; Kong, Jing; van der Zant, Herre S. J.; Dekker, Cees; Kouwenhoven, Leo P.; De Franceschi, Silvano // AIP Conference Proceedings;2005, Vol. 786 Issue 1, p482 

    We report the observation of a multi-level Kondo effect resulting from orbital degeneracy in carbon nanotube quantum dots. The orbital degree of freedom plays the role of a pseudospin whose energy splitting is controlled by an applied magnetic field, and it is an order of magnitude larger than...

  • Erratum: “Carrier migration in structures with InAs quantum dots” [J. Appl. Phys. 94, 2454 (2003)]. Popescu, Dan P.; Eliseev, Peter G.; Stintz, Andreas; Malloy, Kevin J. // Journal of Applied Physics;11/15/2003, Vol. 94 Issue 10, p7001 

    Presents a correction to the article "Carrier Migration in Structures With InAs Quantum Dots," published in the 2003 issue of the "Journal of Applied Physics."

  • Supernova Remnant Relevant Laser-plasma Experiments. Woolsey, N. C.; Ash, A. D.; Chambers, D. M.; Courtois, C.; Dendy, R. O.; Grundy, R. A. D.; McClements, K. G. // AIP Conference Proceedings;2004, Vol. 730 Issue 1, p73 

    Laboratory astro-plasma physics experiments are being designed to advance both our astrophysics and plasma physics knowledge. With current laser technology, target design and diagnostics, it is now possible to reproduce and measure the conditions of temperature and pressure usually met in...

  • Power dependence of the photocurrent lineshape in a semiconductor quantum dot. Russell, A.; Fal’ko, Vladimir I. // Applied Physics Letters;11/5/2007, Vol. 91 Issue 19, p193107 

    We propose a kinetic theory to describe the power dependence of the photocurrent lineshape in optically pumped quantum dots at low temperatures in both zero and finite magnetic fields. We show that there is a crossover power Pc, determined by the electron and hole tunneling rates, where the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics