ISSN:
1551-2916
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Two types of LiNbO3(0001) single-crystal substrates (LN), a conventional LN containing .1019 cm−3 OH ions, and a dehydrated LN were annealed in a dry O2 atmosphere, and their surface morphologies were investigated using atomic force microscopy. For the conventional LN with more OH ions, the surface was significantly roughened in the temperature range of 600°–800°C, accompanied by a large outward diffusion of OH, and then it evolved to a steplike morphology at higher temperatures. However, the dehydrated LN surface changed gradually at temperatures of .700°C to flat terraces without any roughening process. The step heights of the annealed surfaces corresponded to n/6 (where n is an integer) of the c-axis length of the LN crystal. The dehydrated LN substrate, along with the dry-annealing process, achieved fairly flat surfaces.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1151-2916.1997.tb02965.x
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