Abstract
Electron tunneling in semiconductor superlattices with asymmetric unit cells is studied in the two-miniband approximation. It is shown that the probability of interminiband tunneling through a superlattice period is independent of the initial quasi-momentum and can take minimum values in weak electric fields under conditions of the “anticrossing” of Wannier-Stark ladders. In the same fields, currents are at maximum. The dependences of the probability of interminiband tunneling and current on the field direction are predicted. The role of the diagonal elements of the coordinate operator is determined.
Similar content being viewed by others
References
M. Holthaus, J. Opt. B: Quant. Semiclass. Opt. 2, 589 (2000).
S. Glutsch, Phys. Rev. B 69, 235317 (2004).
P. Ao and J. Rammer, Phys. Rev. B 44, 11494 (1991).
K. Drese and M. Holthaus, Eur. Phys. J. D 3, 73 (1998).
V. Ya. Aleshkin and Yu. A. Romanov, Sov. Phys. JETP 60, 1068 (1984); Sov. Phys. Semicond. 20, 176 (1986).
Yu. Yu. Romanova, E. V. Demidov, and Yu. A. Romanov, Bull. Russ. Acad. Sci.: Phys. 74, 96 (2010).
J. Yu. Romanova, E. V. Demidov, L. G. Mourokh, and Yu. A. Romanov, J. Phys.: Condens. Matter 23, 305801 (2011).
Yu. A. Romanov and Yu. Yu. Romanova, Phys. Solid State 46, 157 (2004).
Y. A. Romanov and J. Y. Romanova, Int. J. Nanosci. 3, 177 (2004).
Yu. A. Romanov, in Proceedings of the 8th Russian Conference on Semiconductor Physics (Ekaterinburg, Rossiya, 2007), p. 168; Yu. Yu. Romanova, in Proceedings of the 8th Russian Conference on Semiconductor Physics (Ekaterinburg, Rossiya, 2007), p. 135.
L. K. Orlov and Yu. A. Romanov, Sov. Phys. Semicond. 19, 1157 (1985).
L. K. Orlov and Yu. A. Romanov, Izv. Vyssh. Uchebn. Zaved., Radiofiz. 32, 282 (1989).
L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 3: Quantum Mechanics: Non-Relativistic Theory (Nauka, Moscow, 1989, 4th ed.; Pergamon, New York, 1977, 3rd ed.), rus. p. 26.
G. A. Baraff, Phys. Rev. 133, 26 (1964).
W. E. Pinson and A. Bray, Phys. Rev. 136, 11449 (1964).
Yu. A. Romanov, Phys. Solid State 45, 559 (2003).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © Yu.Yu. Romanova, M.L. Orlov, Yu.A. Romanov, 2012, published in Fizika i Tekhnika Poluprovodnikov, 2012, Vol. 46, No. 11, pp. 1475–1482.
Rights and permissions
About this article
Cite this article
Romanova, Y.Y., Orlov, M.L. & Romanov, Y.A. Tunneling and current characteristics of two-miniband superlattice. Semiconductors 46, 1443–1450 (2012). https://doi.org/10.1134/S1063782612110176
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063782612110176