Electronic-structure of fibonacci Si δ-doped GaAs
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1994
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Elsevier Science BV
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[1] R. Merlin, K. Bajema, R. Clarke, F. -Y. Juang, and P. K. Bhatacharya, Phys. Rev. Lett. 55, 1768 (1985).
[2] J. Todd, R. Merlin, R. Clarke, K. M. Mohanty, and J. D. Axe, Phys. Rev. Lett. 57, 1157 (1986).
[3] M. Kohmoto, L. P. Kadanoff, and C. Tang, Phys. Rev. Lett. 50, 1870 (1983).
[4] S. Ostlund and R. Pandit, Phys. Rev. B 29, 1394 (1984).
[5] F. Laruelle and B. Etienne, Phys. Rev. B 37, 4816 (1988).
[6] K. Hirose, D. Y. K. Ko and H. Kamimura, J. Phys.: Condens. Matter 4, 5947 (1992).
[7] S. Katsumoto, N. Sano, and S. Kobayashi, Solid State Commun. 85, 223 (1993).
[8] F. Domínguez-Adame and A. Sánchez, Phys. Lett. A 159,153 (1991).
[9] E. Maciá, F. Domínguez-Adame, and A. Sánchez, Phys. Rev. B 49, 9503 (1994).
[10] A. Chakrabarti, S. N. Karmakar, and R. K. Moitra, Phys. Lett. A 168, 301 (1992).
[11] L. Ioriatti, Phys. Rev. B 41, 8340 (1990).
[12] J. C. Egues, J. C. Barbosa, A. C. Notari, P. Basmaji, L. Ioriatti, E. Ranz, and J. C. Portal, J. Appl. Phys. 70, 3678 (1991).
[13] B. Méndez and F. Dom´ınguez-Adame, Phys. Rev. B 49, 11 471 (1994).
[14] F. Domínguez-Adame, B. M´endez, and E. Maciá, Semicond. Sci. Technol. 9, 263 (1994).
[15] J. M. Ziman, Models of Disorder (Cambridge University Press, London, 1979).
[16] B. M´endez, F. Domínguez-Adame, and E. Maciá, J. Phys. A: Math. Gen. 26, 171 (1993).
[17] M. Kohmoto, Phys. Rev. Lett. 51, 1198 (1983).
[18] R. Landauer, IBM J. Res. Dev. 1, 223 (1957).
[19] A. Bovier and J. -M. Ghez, Commun. Math. Phys. 158, 45 (1993).
Abstract
We study the electronic structure of a new type of Fibonacci superlattice based on Si delta-doped GaAs. Assuming that delta-doped layers are equally spaced, quasiperiodicity is introduced by selecting two different donor concentrations and arranging them according to the Fibonacci series along the growth direction. The one-electron potential due to delta-doping is obtained by means of the Thomas-Fermi approach. The resulting energy spectrum is then found by solving the corresponding effective-mass wave equation. We find that a self-similar spectrum can be seen in the band structure. Electronic transport properties of samples are also discussed and related to the degree of spatial localization of electronic envelope functions.
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© Elsevier Science BV.
The authors thank A. Sánchez for a critical reading of the manuscript. This work has been partially supported by Univeridad Complutense under project PR161/93-4811.