The DX centre
T.N. Morgan
Semiconductor Science and Technology
As a simple prototype of a ferroelectric crystal we treat a system of coupled anharmonic oscillators in order to determine the range of applicability of different self-consistent approximation schemes. In particular, we examine the self-consistent phonon approximation with an intercell coupling which possesses a variable range of interaction. In the limit where the interaction is of sufficiently long range, the density matrix of the system is obtained numerically exactly. © 1974, Taylor & Francis Group, LLC. All rights reserved.
T.N. Morgan
Semiconductor Science and Technology
Zelek S. Herman, Robert F. Kirchner, et al.
Inorganic Chemistry
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
Thomas H. Baum, Carl E. Larson, et al.
Journal of Organometallic Chemistry