Phase transition between 2 x 1 and c8 x 8 reconstructions observed on the Si001 surface around 600C - Condensed Matter > Materials ScienceReportar como inadecuado




Phase transition between 2 x 1 and c8 x 8 reconstructions observed on the Si001 surface around 600C - Condensed Matter > Materials Science - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: The Si001 surface subjected to different treatments in ultrahigh vacuummolecular beam epitaxy chamber for SiO$ 2$ film decomposition has been in situinvestigated by reflected high energy electron diffraction RHEED and highresolution scanning tunnelling microscopy STM. A transition between 2 x 1and 4 x 4 RHEED patterns was observed. The 4 x 4 pattern arose at T <~600Cduring sample posttreatment cooling. The reconstruction was observed to bereversible. The c8 x 8 structure was revealed by STM at room temperature onthe same samples. The 4 x 4 patterns have been evidenced to be amanifestation of the c8 x 8 surface structure in RHEED. The phase transitionappearance has been found to depend on thermal treatment conditions and samplecooling rate.



Autor: L. V. Arapkina, V. A. Yuryev, V. M. Shevlyuga, K. V. Chizh

Fuente: https://arxiv.org/







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