Abstract
Structures of CdTe-Cd0.6Mn0.4Te superlattices which are caused by the lattice mismatch between superlattice layers have been studied by high resolution electron microscopy (HREM). In thin-layer superlattices, the crystal lattice in each layer is elastically distorted, resulting in the change of the crystal symmetry from cubic to rhombohedral. The presence of the small rhombohedral distrotion has been confirmed through a phase contrast effect in HREM images. In a thick-layer superlattice, the lattice mismatch is accommodated by dissociated misfit dislocations. Burgers vectors of partial misfit dislocations have been identified from the shift of lattice fringes in HREM images.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
G. Osbourn, J. Appl. Phys., 53, 1587 (1982).
L. A. Kolodziejski, T. C. Bonsett, R. L. Gunshor, S. Datta, R. B. Bylsma, W. M. Becker, and N. Otsuka, Appl. Phys. Lett., 45, 440 (1984).
J. W. Matthews and A. E. Blakeslee, J. Cryst. Growth, 27, 118 (1974).
R. People, J. C. Bean, Appl. Phys. Lett., 47, 322 (1985).
J. M. Brown, N. Holonyak, Jr., M. J. Lundowise, W. T. Dietze, and C. R. Lewis, Appl. Phys. Lett., 43, 863 (1983).
International Tables for X-Ray Crystallography II, (Kynoch, Birmingham, 1972), p. 116.
J. M. Cowley, “Diffraction Physics,” (North-Holland, Amsterdam, 1975), p. 283.
G. Lu, and D.J.H. Cockayne, Physica, B, 116, 646 (1983).
Author information
Authors and Affiliations
Additional information
This research was supported by Air Force Office of Scientific Research grant 85-0185 and NSF-MRL grant DMR-83-16988.
Rights and permissions
About this article
Cite this article
Choi, C., Otsuka, N., Kolodziejski, L.A. et al. High Resolution Electron Microscope Study of CdTe-Cd0.6Mn0.4Te Superlattices. MRS Online Proceedings Library 56, 235–240 (1985). https://doi.org/10.1557/PROC-56-235
Published:
Issue Date:
DOI: https://doi.org/10.1557/PROC-56-235