Abstract
Solution of the Poisson equation is analyzed in terms of the model of a completely depleted contact layer for a heterojunction having as one of its components a noncubic silicon carbide polytype that exhibits a spontaneous polarization P sp. It is shown that consideration of P sp leads to broadening of the space charge regions. It is demonstrated that an isotype p-p junction with a quantum well in the valence band of the 3C polytype at the interface with the H-SiC polytype can serve as a model object for studies of the effect exerted by the spontaneous polarization on the properties of SiC heterojunctions. The possibility of a noticeable effect of P sp on the ground-state energy of an electron in the well is demonstrated for the model with a triangular potential well.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Fissel, Phys. Rep. 379, 149 (2003).
A. Qteish, V. Heine, and R. J. Needs, Phys. Rev. B 45, 6534 (1992).
A. Qteish, V. Heine, and R. J. Needs, Phys. Rev. B 45, 6376 (1992).
A. Fissel, U. Kaizer, B. Schröter, et al., Appl. Surf. Sci. 184, 37 (2001).
V. M. Polyakov and F. Schwierz, J. Appl. Phys. 98, 023709 (2005).
B. Monemar, J. Mater. Sci. Electron. 10, 227 (1999).
V. L. Bonch-Bruevich and S. G. Kalashnikov, Physics of Semiconductors (Nauka, Moscow, 1977) [in Russian].
A. A. Lebedev, D. K. Nel’son, V. S. Razbirin, et al., Fiz. Tekh. Poluprovodn. (St. Petersburg) 39, 1236 (2005) [Semiconductors 39, 1194 (2005)].
A. A. Lebedev, A. M. Strel’chuk, N. S. Savkina, et al., Pis’ma Zh. Tekh. Fiz. 28(23), 78 (2002) [Tech. Phys. Lett. 28, 1011 (2002)].
S. Yu. Davydov, A. A. Lebedev, and O. V. Posrednik, Fiz. Tekh. Poluprovodn. (St. Petersburg) 39, 1440 (2005) [Semiconductors 39, 1391 (2005)].
S. Yu. Davydov, Fiz. Tverd. Tela (St. Petersburg) 48, 1407 (2006) [Phys. Solid State 48, 1491 (2006)].
A. A. Lebedev, A. M. Strel’chuk, S. Yu. Davydov, et al., Fiz. Tekh. Poluprovodn. (St. Petersburg) 40, 1432 (2006) [Semiconductors 40, 1398 (2006)].
S. Yu. Davydov, Fiz. Tekh. Poluprovodn. (St. Petersburg) (in press).
L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 3: Quantum Mechanics: Non-Relativistic Theory, 3rd ed. (Nauka, Moscow, 1974; Pergamon, New York, 1977).
V. Ya. Demikhovskiĭ and G. A. Vugal’ter, Physics of Quantum Low-Dimensional Structures (Logos, Moscow, 2000) [in Russian].
Author information
Authors and Affiliations
Additional information
Original Russian Text © S.Yu. Davydov, A.A. Lebedev, A.V. Troshin, 2007, published in Fizika i Tekhnika Poluprovodnikov, 2007, Vol. 41, No. 3, pp. 307–311.
Rights and permissions
About this article
Cite this article
Davydov, S.Y., Lebedev, A.A. & Troshin, A.V. Role of spontaneous polarization in formation of heterojunctions from silicon carbide polytypes. Semiconductors 41, 297–300 (2007). https://doi.org/10.1134/S1063782607030116
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/S1063782607030116