Kondo Effect in Carbon Nanotube Quantum Dot in a Magnetic Field

• Authors: D. Krychowski , S. Lipiński
• Languages of publication: EN

Abstracts

EN

The out-of-equilibrium electron transport of carbon nanotube semiconducting quantum dot placed in a magnetic field is studied in the Kondo regime by means of the non-equilibrium Green functions. The equation of motion method is used. For parallel magnetic field the Kondo peak splits into four peaks, following the simultaneous splitting of the orbital and spin states. For perpendicular field orientation the triple peak structure of density of states is observed with the central peak corresponding to orbital Kondo effect and the satellites reflecting the spin and spin-orbital fluctuations.

Keywords

EN

73.22.-f; 73.23.-b; 73.63.Fg

Discipline

• 73.22.-f: Electronic structure of nanoscale materials and related systems
• 73.63.Fg: Nanotubes
• 73.23.-b: Electronic transport in mesoscopic systems

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 293-295

Dates

published

2009-01

Contributors

author

D. Krychowski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

S. Lipiński

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

References

• 1. M.S. Dresselhaus, G. Dresselhaus, Ph. Avouris, Carbon Nanotubes, Springer-Verlag, Berlin 2000
• 2. P. Jarillo-Herrero, J. Kong, H.S.J van der Zant, C. Dekker, L.P. Kouwenhoven, S. De Franceschi, Nature 434, 484 (2005)
• 3. A. Makarovski, A. Zhukov, J. Liu, G. Finkelstein, Phys. Rev. B 75, 241407 (2007)
• 4. J. Nygard, D.H. Cobden, P.E. Lindelof, Nature 408, 342 (2000)
• 5. M. Choi, R. Lopez, R. Aquado, Phys. Rev. Lett. 95, 0672041 (2005)
• 6. H. Haug, A.P. Jauho, Quantum Kinetics in Transport and Optics of Semiconductors, Springer-Verlag, Berlin 1998
• 7. T.K. Ng, Phys. Rev. Lett. 76, 487 (1996)
• 8. C. Lacroix, J. Phys. F 11, 2389 (1998)
• 9. P. Jarillo-Herrero, S. Sapmaz, C. Dekker, L.P. Kouvenhoven, H.S.J. van der Zant, Nature 429, 389 (2004)
• 10. D. Boese, W. Hofstetter, H. Schoeller, Phys. Rev. B 66, 125315 (2002)
• 11. K. Yamada, K. Yosida, K. Hanzawa, Prog. Theor. Phys. 71, 450 (1984)
• 12. S. Lipiński, D. Krychowski, to be published

Identifiers

DOI

10.12693/APhysPolA.115.293