Singlet-triplet transitions in a few-electron quantum dot

Physica B: Condensed Matter

Volumn 256-258, Issue , 1998, Pages 173-177

  Van Der Wiel, W G ^a   Oosterkamp, T H ^a   Janssen, J W ^a   Kouwenhoven, L P ^a   Austing, D G ^b   Honda, T ^b   Tarucha, S ^b  

^a DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

^b Kashino Diverse Brain Research Laboratory of NTT Communication Science Laboratories   (Japan)

Author keywords

Mesoscopic physics; Quantum dots; Singlet triplet transition

Indexed keywords

EID: 0348199622     PISSN: 09214526     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0921-4526(98)00543-2     Document Type: Article

References (15)

1. R.C. Ashoori, Nature 379 (1996) 413.
2. L.P. Kouwenhoven, C.M. Marcus, P.L. McEuen, S. Tarucha, R.M. Westervelt, N.S. Wingreen, in: L.L. Sohn, L.P. Kouwenhoven, G. Schön (Eds.), Proceedings of the NATO Advanced Study Institute on Mesoscopic Electron Transport, Kluwer Series E345, 1997, pp. 105-214; See also http://vortex.tn.tudelft.nl/~leok/papers/.
3. L.P. Kouwenhoven, C.M. Marcus, P.L. McEuen, S. Tarucha, R.M. Westervelt, N.S. Wingreen, in: L.L. Sohn, L.P. Kouwenhoven, G. Schön (Eds.), Proceedings of the NATO Advanced Study Institute on Mesoscopic Electron Transport, Kluwer Series E345, 1997, pp. 105-214; See also http://vortex.tn.tudelft.nl/~leok/papers/.
4. T.H. Oosterkamp, W.G. van der Wiel, L.P. Kouwenhoven, D.G. Austing, T. Honda, S. Tarucha, Advances in solid state physics (to be published).
5. L.P. Kouwenhoven, T.H. Oosterkamp, M.W.S. Danoesastro, M. Eto, D.G. Austing, T. Honda, S. Tarucha, Science 278 (1997) 1788.
6. S. Tarucha, D.G. Austing, T. Honda, R.J. van der Hage, L.P. Kouwenhoven, Phys. Rev. Lett. 77 (1996) 3613.
7. D.G. Austing, T. Honda, S. Tarucha, Semicond. Sci. Technol. 11 (1996) 212.
8. V. Fock, Z. Phys. 47 (1928) 446; C.G. Darwin, Proc. Cambridge Philos. Soc. 27 (1930) 86.
9. V. Fock, Z. Phys. 47 (1928) 446; C.G. Darwin, Proc. Cambridge Philos. Soc. 27 (1930) 86.
10. M. Wagner, U. Merkt, A.V. Chaplik, Phys. Rev. B 45 (1992) 1951.
11. 5 T, see G. Thurner, H. Herold, H. Ruder, G. Schlicht, G. Wunner, Phys. Lett. 89A (1982) 133. Due to the larger dimensions, the transition is expected to occur around 4.5 T in our dots.
12. R.C. Ashoori, H.L. Störmer, J.S. Weiner, L.N. Pfeiffer, K.W. Baldwin, K.W. West, Phys. Rev. Lett. 71 (1993) 613.
13. B. Su, V.J. Goldman, J.E. Cunningham, Phys. Rev. B 46 (1992) 7644.
14. T. Schmidt, M. Tewordt, R.H. Blick, R.J. Haug, D. Pfannkuche, K.v. Klitzing, A. Förster, H.L. Luth, Phys. Rev. B 51 (1995) 5570.
15. A small irregularity is visible around 3 T. This feature cannot be ascribed to a crossing of states in the dot, which is verified at finite source-drain voltages where both ground and excited states can be distinguished.