Abstract
The drag current for ionization of a shallow impurity by a strong electromagnetic wave in a semiconductor superlattice is found. It is shown that at low temperatures, when it is possible to ignore the equilibrium carrier density, the dependence of the drag current on the intensity of the electromagnetic wave is nonlinear and it oscillates with growth of the intensity of the electromagnetic field. These oscillations are a consequence of the many-photon character of absorption of the electromagnetic wave by the impurities and also of nonparabolicity of the energy spectrum of the superlattice. A comparison is made of the contributions to the drag current from the anisotropic part of the impurity ionization probability and from its isotropic part, with allowance for modification of the distribution function by the electromagnetic wave. It is found that for
(Δ is the width of the conduction miniband) the main contribution to the drag current comes from the isotropic part of the ionization probability.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Referneces
A. A. Ignatov, Fiz. Tverd. Tela (Leningrad) 22(11), 3319 (1980) [Sov. Phys. Solid State 22, 1942 (1980)].
É. M. Épshtein, Fiz. Tekh. Poluprovodn. 14(12), 2422 (1980) [Sov. Phys. Semicond. 14, 1438 (1980)].
É. M. Épshtein, Izv. Vuzov. Radiofizika 24(4), 514 (1981).
É. M. Épshtein, Fiz. Tekh. Poluprovodn. 16(12), 2231 (1982) [Sov. Phys. Semicond. 16, 1445 (1982)].
N. A. Brynskii and S. A. Sagdullaeva, Fiz. Tekh. Poluprovodn. 12(4), 798 (1978) [Sov. Phys. Semicond. 12, 467 (1978)].
S. D. Ganichev, S. A. Emel’yanov, E. L. Ivchenko, E. Yu. Perlin, Ya. V. Terent’ev, A. V. Fedorov, and I. D. Yaroshetskii, Zh. Éksp. Teor. Fiz. 91(4), 1233 (1986) [Sov. Phys. JETP 64, 729 (1986)].
R. Ya. Rasulov, Fiz. Tekh. Poluprovodn. 22(11), 2077 (1988) [Sov. Phys. Semicond. 22, 1316 (1988)].
S. V. Kryuchkov, Fiz. Tekh. Poluprovodn. 25(4), 740 (1991) [Sov. Phys. Semicond. 25, 446 (1991)].
F. G. Bass, A. A. Bulgakov, and A. P. Tetervov, High-Frequency Properties of Semiconductors with Superlattices [in Russian], Nauka, Moscow, 1989.
N. B. Delone and V. P. Krainov, Usp. Fiz. Nauk 165(11), 1295 (1995) [Phys. Usp. 36, 805 (1995)].
M. V. Fedorov, Usp. Fiz. Nauk 169(1), 66 (1999).
K. Seeger, Semiconductor Physics (Springer-Verlag, Berlin, 1974).
L. V. Keldysh, Zh. Éksp. Teor. Fiz. 47(5), 1945 (1964) [Sov. Phys. JETP 20, 1307 (1964)].
M. V. Fedorov, Electron in a Strong Light Field [in Russian], Nauka, Moscow, 1991.
Author information
Authors and Affiliations
Additional information
Fiz. Tekh. Poluprovodn. 33, 1443–1446 (December 1999)
Rights and permissions
About this article
Cite this article
Vyazovskii, M.V., Syrodoev, G.A. Drag current for ionization of impurities by an electromagnetic wave in a semiconductor superlattice. Semiconductors 33, 1297–1300 (1999). https://doi.org/10.1134/1.1187911
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/1.1187911