Abstract.
Polaron properties are studied in bulk wurtzite nitride ternary mixed crystals AxB1-xN (A, B = Al, Ga, In) with the use of a dielectric continuum Fröhlich-like electron-phonon interaction Hamiltonian. The polaronic self-trapping energy and effective mass are analytically derived by taking the mixing properties of the LO and TO polarizations due to the anisotropy effect into account in the mono-phonon approximation. The numerical computation has been performed for the wurtzite ternary mixed crystal materials InxGa1-xN, AlxGa1-xN, and AlxIn1-xN as functions of the composition x. The results show that the polaronic self-trapping energies in the wurtzite structures are bigger than that in zinc-blende structures for the materials calculated. It is also found that the structure anisotropy increases the electron-phonon interaction in wurtizte nitride semiconductors. The results indicate that the LO-like phonon influence on the polaronic self-trapping energy and effective mass is dominant, and the anisotropy effect is obvious.
Similar content being viewed by others
References
S. Nakamura, The Blue Laser Diode-GaN Based Light Emitters and Lasers (Springer, Berlin, 1997)
S. Strite, H. Morkoc, J. Vac. Sci. Technol. B 10, 1237 (1992)
C. Bungaro, K. Rapcewicz, J. Bernholc, Phys. Rev. B 61, 6720 (2000)
S.G. Yu, K.W. Kim, L. Bergman, M. Dutta, M.A. Stroscio, M. Zavada, Phys. Rev. B 58, 15283 (1998)
H. Grille, C. Schnittler, F. Bechstedt, Phys. Rev. B 61, 6091 (2000)
A. Kasic, M. Schubert, J. Off, F. Scholz, Appl. Phys. Lett. 78, 1256 (2001)
I.F. Chang, S.S. Mitria, Adv, Phys. 20, 359 (1971)
X.X. Liang, S.L. Ban, Chinese Physics 13, 71 (2004)
R. Loudon, Adv. Phys. 13, 423 (1996); W. Hayes, R. Loudon, Scatting of Light by Crystals (Wiley, New York, 1978)
J.T. Devreese, Polarons in Ionic Crystals and Polar Semiconductors (North-Holland, Amsterdam, 1972)
N. Mori, T. Ando, Phys. Rev. B 40, 6175 (1989)
Z.W. Yan, S.L. Ban, X.X. Liang, Eur. Phys. J. B 35, 41 (2003)
F.M. Peeters, J.T. Devreese, Phys. Rev. B 36, 4442 (1987)
J.E. Zucker, A. Pinczuk, D.S. Chemla, A. Gossard, W. Wiegmann, Phys. Rev. Lett. 53, 1280 (1984)
B.C. Lee, K.W. Kim, M. Dutta, M.A. Stroscio, Phys. Rev. B 56, 997 (1997)
E.R. Racec, D.E.N. Brancus, J. Phys. C 10, 3857 (1998)
J.J. Shi, Phys. Rev. B 68, 165335 (2003)
M.E. Mora-Ramos, F.J. Rodríguez, L. Quiroga, Phys. Stat. Sol. (b) 220, 111 (2000), Solid State Commun. 109, 767 (1999)
M.E. Mora-Ramos, Phys. Stat. Sol. (b) 223, 843 (2001)
Z.W. Yan, S.L. Ban, X.X. Liang, Phys. Lett. A 236, 157 (2004)
M. Born, K. Huang, Dynamical Theory of Crystal Lattices (Clarendon Press, Oxford, England, 1954)
T.D. Lee, F.E. Low, D. Pines, Phys. Rev. 90, 297 (1953)
X.X. Liang, Y.S. Zhang, Z. Phys. B 91, 455 (1993)
I. Vurgaftman, I.R. Ram-Mohan, J. Appl. Phys. 89, 5815 (2001)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yan, Z., Ban, S. & Liang, X. Polaron properties in ternary group-III nitride mixed crystals. Eur. Phys. J. B 43, 339–345 (2005). https://doi.org/10.1140/epjb/e2005-00061-3
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epjb/e2005-00061-3