Вышедшие номера
Electrodynamical treatment of the electron-hole long-range exchange interaction in semiconductor nanocrystals
Goupalov S.V.1,2, Lavallard P.3, Lamouche G.4, Citrin D.S.1
1School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia USA
2A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, St. Petersburg, Russia
3Groupe de Physique des Solides, CNRS, UMR, Universite Denis Diderot and Universite Pierre et Marie Curie, Paris, Cedex 05, France
4Institut des Materiaux Industriels, CNRC, Boucherville, Quebec, Canada J4B-6Y4
Email: goupalov@ece.gatech.edu
Поступила в редакцию: 12 сентября 2002 г.
Выставление онлайн: 19 марта 2003 г.

We show that the contribution to the fine structure of the ground exciton level in a semiconductor nanocrystal due to the long-range part of the electron-hole exchange interaction can be equivalently described as arising from the mechanical exciton interaction with the exciton-induced macroscopic longitudinal electric field. Particular cases of nanocrystals with cubic and wurtzite crystal lattice in the strong confinement regime are studied taking into account the complex structure of the valence band. A simplified model accounting for the exciton ground-level splitting and exploiting an effective local scalar succeptibility is established.
  1. M. Nirmal, D.J. Norris, M. Kuno, M.G. Bawendi, Al.L. Efros, M. Rosen. Phys. Rev. Lett. 75, 3728 (1995)
  2. D.J. Norris, Al.L. Efros, M. Rosen, M.G. Bawendi. Phys. Rev. B 53, 16 347 (1996)
  3. Al.L. Efros, M. Rosen, M. Kuno, M. Nirmal, D.J. Norris, M.G. Bawendi. Phys. Rev. B 54, 4843 (1996)
  4. M. Chamarro, C. Gourdon, P. Lavallard, O. Lublinskaya, A.I. Ekimov. Phys. Rev. B 53, 1336 (1996)
  5. M. Chamarro, M. Dib, C. Gourdon, P. Lavallard, O. Lublinskaya, A.I. Ekimov. Proceedings of Mat. Res. Soc. Symp. Boston (1996). P. 396
  6. U. Woggon, F. Gindele, O. Wind, C. Klingshirn. Phys. Rev. B 54, 1506 (1996)
  7. G.E. Pikus, G.L. Bir. Zh. Eksp. Teor. Fiz. 60, 195 (1971); 62, 324 (1972). [Sov. Phys. JETP 33, 108 (1971); 35, 174 (1972)]
  8. G.L. Bir, G.E. Pikus. Symmetry and Strain-Induced Effects in Semiconductors. Nauka, Moscow (1972); Wiley, N.Y. (1974). ch. 4
  9. M.M. Denisov, V.P. Makarov. Phys. Stat. Sol. (b) 56, 9 (1973)
  10. V.M. Agranovich, V.L. Ginzburg. Crystal Optics with Spatial Dispersion, and Excitons. Nauka, Moscow (1979); Springer-Verlag, Berlin--N.Y. (1984)
  11. S.V. Goupalov, E.L. Ivchenko, A.V. Kavokin. Zh. Eksp. Teor. Fiz. 113, 703 (1998). [JETP 86, 388 (1998)]
  12. K. Cho. J. Phys. Soc. Jpn. 68, 683 (1999)
  13. S.V. Goupalov, E.L. Ivchenko. J. Cryst. Growth 184/185, 393 (1998); Acta Physica Polonica A94, 341 (1998)
  14. S.V. Goupalov, E.L. Ivchenko. Fiz. Tverd. Tela 42, 1976 (2000). [Phys. Sol. Stat. 42, 2030 (2000)]
  15. S.V. Goupalov, E.L. Ivchenko, A.V. Kavokin. Superlatt. Microstruct. 23, 1209 (1998)
  16. A. Franceschetti, L.W. Wang, H. Fu, A. Zunger. Phys. Rev. B 58, 13 367 (1998)
  17. F. Bassani, G. Pastori Parravicini. Electronic States and Optical Transitions in Solids. Pergamon, Oxford (1975); Nauka, Moscow (1982)
  18. K. Cho. Phys. Rev. B 14, 4463 (1976)
  19. T. Takagahara. Phys. Rev. B 47, 4569 (1993)
  20. S.V. Goupalov, E.L. Ivchenko. Fiz. Tverd. Tela 43, 1791 (2001). [Phys. Sol. Stat. 43, 1867 (2001)]
  21. Note that the term "dipole-dipole" as well as "monopole-monopole", etc. refers here to the coefficients of the expansion of the Coulomb potential in the series near the atomic sites and not to the character of the spatial dependence of the corresponding matrix elements of the long-range exchange Hamiltonian on the band states. The spatial dependence of the matrix element of the long-range exchange Hamiltonial corresponding to the monopole-monopole term consists of a term proportional to the delta-function and the remaining part. The spatial dependence of this remaining part coincides with that of the matrix element of the long-range exchange Hamiltonial corresponding to the dipole-dipole term as soon as intra-atomic matrix elements of the velocity operator are substituted by inter-atomic ones
  22. S. Lee, L. Jonsson, J.W. Wilkins, G.W. Bryant, G. Klimeck. Phys. Rev. B 63, 195 318 (2001)
  23. H. Ajiki, K. Cho. Phys. Rev. B 62, 7402 (2000)
  24. A.I. Ekimov, A.A. Onushchenko, M.E. Raikh, Al.L. Efros. Zh. Eksp. Teor. Fiz. 90, 1795 (1986). [Sov. Phys. JETP 63, 1054 (1986)]
  25. K. Cho, H. Ajiki, T. Tsuji. Phys. Stat. Sol. (b) 224, 735 (2001)
  26. H. Ajiki, K. Cho. In: Proc. Int. Conf. EXCON2000 / Ed. by K. Cho, A. Matsui. World Scientific, Singapore (2001). P. 177
  27. D. Schechter. J. Phys. Chem. Solids 23, 237 (1962)
  28. D.A. Varshalovich, A.N. Moskalev, V.K. Khersonskii. Quantum Theory of Angular Momentum. Nauka, Leningrad (1975); World Scientific, Singapore (1988)
  29. Y. Fu, M. Willander, E.L. Ivchenko, A.A. Kiselev. Phys. Rev. B 55, 9872 (1997)
  30. The validity of the formula for integration by parts for integrands containing the Coulomb potential can be proven by transformation into the k-space
  31. E.L. Ivchenko, G.E. Pikus. Superlattices and Other Heterostructures. Symmetry and Optical Phenomena. Springer-Verlag, Berlin--Heidelberg (1997)
  32. P. Lavallard. J. Crystal Growth 184/185, 352 (1998)
  33. L.D. Landau, E.M. Lifshitz. Electrodynamics of Continuous Media. Pergamon Press, Oxford (1960)
  34. P. Lavallard, M. Rosenbauer, T. Gacoin. Phys. Rev. A 54, 5450 (1996)
  35. Al.L. Efros. Phys. Rev. B 46, 7448 (1992)
  36. P. Lavallard, G. Lamouche, S.V. Goupalov, to be published

Подсчитывается количество просмотров абстрактов ("html" на диаграммах) и полных версий статей ("pdf"). Просмотры с одинаковых IP-адресов засчитываются, если происходят с интервалом не менее 2-х часов.

Дата начала обработки статистических данных - 27 января 2016 г.