Nanocrystal molecules and chains

Journal of Chemical Physics

Volumn 119, Issue 14, 2003, Pages 7484-7490

  Diaz J G ^a   Planelles, J ^a   Jaskolski W ^b   Aizpurua, J ^c   Bryant, G W ^c  

^a UJI   (Spain)

^b NICOLAUS COPERNICUS UNIVERSITY   (Poland)

^c NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CALCULATIONS; ELECTRONIC DENSITY OF STATES; GROUND STATE; MAGNETIC FIELD EFFECTS; MATHEMATICAL MODELS; MOLECULAR DYNAMICS; MOLECULES; PHASE TRANSITIONS; SEMICONDUCTOR DEVICE STRUCTURES; SEMICONDUCTOR MATERIALS; SEMICONDUCTOR QUANTUM WELLS;

DENSITY CONTOURS; ELECTRON ENERGY STRUCTURE; SEMICONDUCTOR NANOCRYSTALS; TIGHT BINDING APPROACH;

NANOSTRUCTURED MATERIALS;

EID: 10744226396     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1605940     Document Type: Article

References (41)

1. R. Ashori, Nature (London) 379, 413 (1996).
2. W. Jaskólski, M. Zielinski, G. W. Bryant, and J. Plannelles, Int. J. Quantum Chem. 90, 1075 (2002).
3. J. J. Palacios and P. Hawrylak, Phys. Rev. B 51, 1769 (1995).
4. S. C. Benjamin and N. F. Johnson, Phys. Rev. B 51, 14733 (1995).
5. S.-S. Li and J.-B. Xia, Phys. Rev. B 55, 15434 (1997).
6. R. H. Blick, D. Pfannkuche, R. J. Haug, K. v. Klitzing, and K. Eberl, Phys. Rev. Lett. 80, 4032 (1998).
7. B. Szafran, S. Bedranek, and J. Adamowski, Phys. Rev. B 64, 125301 (2001).
8. A. Schliwa, O. Stier, R. Heitz, M. Grundmann, and D. Bimberg, Phys. Status Solidi B 224, 405 (2001).
9. L. R. C. Fonseca, J. L. Jimenez, and J. P. Leburton, Phys. Rev. B 58, 9955 (1998).
10. A. Vasanelli, M. De Giorgi, R. Ferreira, R. Cingolani, and G. Bastard, Physica E (Amsterdam) 11, 41 (2001).
11. G. W. Bryant, Phys. Rev. B 40, 1620 (1989).
12. G. W. Bryant and W. Jaskólski, Physica E (Amsterdam) 13, 293 (2002).
13. G. Burkard and D. Loss, Europhys. News 33, 166 (2002).
14. Semiconductor Spintronics and Quantum Computation, edited by D. D. Awschalom, D. Los, and N. Samarth (Springer, Berlin, 2002).
15. W. Jaskólski, M. Zieliński, and G. W. Bryant, (unpublished)
16. J. Aizpurua, Garnett W. Bryant, and W. Jaskólski, (unpublished).
17. C. R. Kagan, C. B. Murray, M. Nirmal, and M. G. Bawendi, Phys. Rev. Lett. 76, 1517 (1996).
18. M. V. Artemyev, A. I. Bibik, L. I. Gurinovich, S. V. Gaponenko, and U. Woggon, Phys. Rev. B 60, 1504 (1999).
19. H. Döllefeld, H. Weller, and A. Eychmüller, Nano Lett. 1, 267 (2001).
20. F. Remacle and R. D. Levine, Chemphyschem 2, 20 (2001).
21. J. Planelles, W. Jaskólski, and J. I. Aliaga, Phys. Rev. B 65, 033306 (2001).
22. Hole states of coupled nanocrystals are affected in a more complex way since the interdot coupling influences the intradot valence subband mixing. This will be subject of future work.
23. J. Planelles, J. G. Diaz, J. Climente, and W. Jaskólski, Phys. Rev. B 65, 245302 (2002).
24. W. E. Arnoldi, Q. Appl. Math. 9, 17 (1951)
25. Y. Saad, Numerical Methods for Large Scale Eigenvalue Problems (Halsted, New York, 1992)
26. R. B. Morgan, Math. Comput. 65, 1213 (1996).
27. R. B. Lehoucq, D. C. Sorensen, P. A. Vu, and C. Yang, Arpack: Fortran subroutines for solving large scale eigenvalue problems, release 2.1; R. B. Lehoucq, D. C. Sorensen, and C. Yang, Arpack User's Guide: Solution of Large-Scale Eigenvalue Problems with Implicit Restarted Arnoldi Methods, SIAM, Philadelphia, 1998. Use of this software does not constitute endorsement or validation by NIST.
28. G. W. Bryant and W. Jaskólski, Phys. Status Solidi B 224, 751 (2001).
29. G. W. Bryant and W. Jaskólski, Physica E (Amsterdam) 11, 72 (2001).
30. 0 has been set to 50 eV in this case.
31. Note that since the 2S state is less diffused along the z axis than the 1P(M=0) state, its splitting is smaller than the splitting of the 1P(M=0) state, but larger than splitting of the 1S and 1P(M=±1) states.
32. To ensure that the two nanocrystals are exactly the same - i.e., that both dots are centered on the same type of atom - only dot overlap by an integer number of lattice constants is allowed.
33. R. B. Little, M. A. El-Sayed, G. W. Bryant, and S. Burke, J. Chem. Phys. 114, 1813 (2001).
34. A. Mews, A. Eychmüller, M. Giersig, D. Schooss, and H. Weller, J. Phys. Chem. 98, 934 (1994).
35. A. Mews, A. V. Kadavanich, U. Banin, and A. P. Alivisatos, Phys. Rev. B 53, R13 242 (1996).
36. R. B. Little, C. Burda, S. Link, S. Logunov, and M. A. El-Sayed, J. Phys. Chem. A 102, 6581 (1998).
37. Total parity means here the parity of the state in the double dot relative to the midpoint between the dots plus the parity inside the dot relative to the dot center of the intradot part of the wave function. The double-dot states with odd total parity have a node between the two dots which significantly suppresses the effects of the coupling.
38. S. G. Davison and M. Stȩślicka, Basic Theory of Surface States (Clarendon, Oxford, 1992).
39. D. J. Norris and M. G. Bawendi, Phys. Rev. B 53, 16338 (1996).
40. Only the 2S states are still rather localized, since the maximum of the radial charge density of the 2S state is located close to the dot center and the interaction between the dots in this state is weaker.
41. The localization may occur for two neighboring nanocrystals of similar size.