Surface strain during homoepitaxy : growth and ion ablation of CdTe

• Autorzy: Tatarenko S. , Etgens V. H. , Hartmann J. M. , Martrou D. , Arnoult A. , Cibert J. , Magnea N. , Sauvage-Simkin M. , Alvarez J. , Ferrer S.
• Konferencja: The International Conference on Solid State Crystals '98 (ICSSC '98) ; (12.09-16.09.1998) ; Zakopane, Poland
• Języki publikacji: EN

Abstrakty

EN

Oscillations of the surface lattice parameter were observed by RHEED during the homoepitaxial growth of (001) CdTe by molecular beam epitaxy (MBE) and atomic layer epitaxy (ALE). The oscillations are associated to a deformation, induced by the surface reconstruction, 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 layers behaviour of the CdTe surface in real time during the ablation by ion sputtering. The results show a relaxation mechanism, which is effective only whem islands are presented on the surface. A correlation has been found between the size the islands, their distribution, and the surface reconstruction. Particularly, a long-distance correlation between islands along the [1-10] direction has been observed.

Słowa kluczowe

EN

CdTe; homoepitaxial growth; MBE; ALE; sputtering; surface reconstruction

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 1999
• Tom: Vol. 7, No. 2
• Strony: 75--80
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Tatarenko S.

autor

Etgens V. H.

autor

Hartmann J. M.

autor

Martrou D.

autor

Arnoult A.

autor

Cibert J.

autor

Magnea N.

autor

Sauvage-Simkin M.

autor

Alvarez J.

autor

Ferrer S.

• Laboratoire de Spectrométrie Physique, CNRS, Université Joseph Fourier-Grenoble, BP 87, 38402 Saint Martin d'Héres, France