Re: [sdpd] inference

[Luca Lutterotti <Luca.Lutterotti...@ing.unitn.it>]

Dear Anoop,
you probably have to start from a good book on diffraction (Cullity or 
similar) and read carefully the texture (or preferred orientation part) 
plus the line broadening.
There was already a similar question (may be on the Rietveld list few 
weeks ago) about the low intensity, mainly due to the thickness (small 
scattering volume) and the broadening of the peak for the limited 
crystallized domain (lower than 100 nm).
The fact that for the film you are just getting the (111) is due to 
texture but reading some literature on thin films and texture it will 
be clear.
		Best regards,
			Luca Lutterotti


On Apr 6, 2005, at 6:29, anoopnemom wrote:

>
>
> hi all
> In my powder XRD pattern the maximum intensity was indexed to (311)
> plane including several other peaks. but when i made it in to a thin
> film(on quartz)about 100nm thickness, i am getting only one peak which
> is indexed to (111) plane which is having very low intensity in powder.
> why is to so? Is that the thickness of film makes this? Or it shows
> low crystallanity? Please let me know since i am a beginner in such
> analysis?
> thanking you all in advance
> anoop
> research scholar
> dept of physics
> cusat
> kochi,
> kerala.
>
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>
> Yahoo! Groups Links
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