Spin-density-functional theory of circular and elliptical quantum dots

Physical Review B - Condensed Matter and Materials Physics

Volumn 59, Issue 7, 1999, Pages 4604-4607

  Hirose, Kenji ^a   Wingreen, Ned S ^a  

^a NEC LABORATORIES AMERICA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001497051     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.4604     Document Type: Article

References (28)

1. M. A. Kastner, Rev. Mod. Phys. 64, 849 (1992);
2. R. C. Ashoori, Nature (London) 379, 413 (1996).
3. U. Meirav, M. A. Kastner, and S. J. Wind, Phys. Rev. Lett. 65, 771 (1990).
4. R. C. Ashoori, H. L. Stormer, J. S. Weiner, L. N. Pfeiffer, S. J. Pearton, K. W. Baldwin, and K. W. West, Phys. Rev. Lett. 68, 3088 (1992).
5. S. Tarucha, D. G. Austing, T. Honda, R. J. van der Hage, and L. P. Kouwenhoven, Phys. Rev. Lett. 77, 3613 (1996);
6. S. TaruchaD. G. AustingT. HondaR. J. van der HageL. P. KouwenhovenJpn. J. Appl. Phys., Part 1 36, 3917 (1997).
7. We find good agreement between our results and exact diagonalization results obtained for up to five electrons; P. A. Maksym and T. Chakraborty, Phys. Rev. Lett. 65, 108 (1990);
8. D. Pfannkuche, V. Gudmundsson, and P. A. Maksym, Phys. Rev. B 47, 2244 (1993);
9. P. Hawrylak and D. Pfannkuche, Phys. Rev. Lett. 70, 485 (1993);
10. J. J. Palacios, L. M. Moreno, G. Chiappe, E. Louis, and C. Tejedor, Phys. Rev. B 50, 5760 (1994).
11. M. Eto, Jpn. J. Appl. Phys., Part 1 36, 3924 (1997).
12. A. Kumar, S. E. Laux, and F. Stern, Phys. Rev. B 42, 5166 (1990).
13. M. Fujito, A. Natori, and H. Yasunaga, Phys. Rev. B 53, 9952 (1996).
14. H. -M. Müller and S. E. Koonin, Phys. Rev. B 54, 14 532 (1996).
15. M. Macucci, K. Hess, and G. J. Iafrate, Phys. Rev. B 48, 17 354 (1993);
16. M. MacucciK. HessG. J. IafrateJ. Appl. Phys. 77, 3267 (1995);
17. M. MacucciK. HessG. J. IafratePhys. Rev. B 55, 4879 (1997).
18. M. Stopa, Phys. Rev. B 54, 13 767 (1996).
19. M. Koskinen, M. Manninen, and S. M. Reimann, Phys. Rev. Lett. 79, 1389 (1997).
20. S. Nagaraja, P. Matagne, V. Y. Thean, J. P. Leburton, Y. H. Kim, and R. M. Martin, Phys. Rev. B 56, 15 752 (1997).
21. I. H. Lee, V. Rao, R. M. Martin, and J. P. Leburton, Phys. Rev. B 57, 9035 (1998).
22. W. Kohn and L. J. Sham, Phys. Rev. 140, A1133 (1965).
23. For the exchange-correlation energy (Formula presented) we use the parametrized form by Tanatar and Ceperley for the two-dimensional electron gas. B. Tanatar and D. M. Ceperley, Phys. Rev. B 39, 5005 (1989).
24. V. Shikin, S. Nazin, D. Heitmann, and T. Demel, Phys. Rev. B 43, 11 903 (1991).
25. T. Darnhofer and U. Rössler, Phys. Rev. B 47, 16 020 (1993).
26. We see no spin blockade phenomena (Ref. 20) for an elliptic potential, i.e., no jumps by more than spin 1/2. But we verify the spin blockade as found by Eto in the nonparabolic potential he considers.
27. M. Eto, J. Phys. Soc. Jpn. 66, 2244 (1997).
28. D. Weinmann, W. Häusler, and B. Kramer, Phys. Rev. Lett. 74, 984 (1995).