Abstract:
:In this paper we report the effect of noble gas ions bombardment on the degradation of atomically flat Si(111) surfaces at room and high (400 degrees C-600 degrees C) temperatures. Reflection high energy electron diffraction (RHEED) and reflection electron microscopy (REM) have been used to characterize the topography and structure of the as-implanted and post annealed surface layers. It is shown that the fading of the specularly reflected beam is not directly related to the amorphization of the surface. This experimental study has also evidenced the difficulties one meets to regrow a defect-free material after amorphization by noble gas bombardment. For high temperature for which the amorphization is not possible, the surface loses its stepped structure and turns into a monocrystalline but atomically rough surface. This roughness is a function of substrate temperature.
journal_name
Microsc Res Techjournal_title
Microscopy research and techniqueauthors
Claverie A,Beauvillain J,Fauré J,Vieu C,Jouffrey Bdoi
10.1002/jemt.1070200406keywords:
subject
Has Abstractpub_date
1992-02-15 00:00:00pages
352-9issue
4eissn
1059-910Xissn
1097-0029journal_volume
20pub_type
杂志文章abstract::To evaluate the performance degradation of fabric drying in domestic air-vented dryer, the appearance, mechanical, and microscopic properties of the wool fabric after different drying cycles were studied. Pilling and dimensional stability tests were performed according to established international standards. Microscop...
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