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Proceedings Paper

Surface strain during homoepitaxy: growth and ion ablation of CdTe
Author(s): S. Tatarenko; V. H. Etgens; J. M. Hartmann; D. Martrou; A. Arnoult; J. Cibert; N. Magnea; Michele Sauvage-Simkin; J. Alvarez; Salvador Ferrer
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Paper Abstract

Oscillations of the surface lattice parameter were observed by RHEED during the homoepitaxial growth of (001) CdTe by Molecular Beam Epitaxy and Atomic Layer Epitaxy. The oscillations are associated to a deformation, induced by the surface reconstructions, at the free edges of the small 2D islands formed during the growth. In the same way, a lateral relaxation is measured during the layer by layer `de-growth' of (001) CdTe. Experiments using a CCD X-ray sensitive camera combined with the very bright X-ray beam offered by the European Synchrotron Radiation Facility allowed us to investigate the two layer behavior of the CdTe surface in real time during the ablation by ion sputtering. The results show a relaxation mechanism which is effective only when islands are present on the surface. A correlation has been found between the size of the islands, their distribution, and the surface reconstruction. Particularly, a long- distance correlation between islands along the [1,-1,0] direction has been observed.

Paper Details

Date Published: 8 April 1999
PDF: 8 pages
Proc. SPIE 3725, International Conference on Solid State Crystals '98: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology, (8 April 1999); doi: 10.1117/12.344740
Show Author Affiliations
S. Tatarenko, Univ. Joseph Fourier Grenoble (France)
V. H. Etgens, Univ. Pierre et Marie Curie (France)
J. M. Hartmann, CEA Grenoble (France)
D. Martrou, CEA Grenoble (France)
A. Arnoult, Univ. Joseph Fourier Grenoble (France)
J. Cibert, Univ. Joseph Fourier Grenoble (France)
N. Magnea, CEA Grenoble (France)
Michele Sauvage-Simkin, Univ. Pierre et Marie Curie (France)
J. Alvarez, European Synchrotron Radiation Facility (Germany)
Salvador Ferrer, European Synchrotron Radiation Facility (France)


Published in SPIE Proceedings Vol. 3725:
International Conference on Solid State Crystals '98: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology
Antoni Rogalski; Jaroslaw Rutkowski, Editor(s)

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