<< We have done Rietveld refinement on GaN powder obtained by grinding single
crystals and the results were the following:
a=3.1843(5) c=5.1746(8)
Stan
[EMAIL PROTECTED] >>
I extrapolated a value of 5.1847(5)A on a freestanding (presumably high
purity), [00l] textured GaN film using MoKa1
Dear all,
Thank you, Armel, Uwe, Bryan, Mattia and all.
Now I understand the crystal structure.
Thanks again.
--
Hiroaki Abe, Dr. Eng., Staff Scientist
Japan Atomic Energy Research Institute - Takasaki
Department of Materials Development
Functional
I apologize. I accidentally sent tif instead of gif.
At 04:53 PM 3/7/01 +, you wrote:
>I really must object to such unnecessarily large files being sent on this
>mailing list. This last one was nearly 1 mb yet contained information that
>need
>only take a few hundred bites in ascii.
>
>I h
>If you must send binary pics, at least make them compressed gifs (vastly
>smaller). In this case an asci file would have been perfectly adequate.
Some databases do not allow saving the data as ASCII files :
CRYSTMET, ICDD PDF through PDFWin... I make sreen copies
when I have to send PDF data t
I really must object to such unnecessarily large files being sent on this
mailing list. This last one was nearly 1 mb yet contained information that need
only take a few hundred bites in ascii.
I havent got the space for this stuff and also it has a nasty habit of screwing
our system.
If you mu
There is a new experimental pattern in the PDF - 50-0792, which replaces
2-1078.
I have attached a print-out of this entry from the PDF, Release 2000. It
is a star pattern and has FOM=101.
Interestingly enough, there are at least 3 entries in the ICSD database
(not very useful in the context
Hello everyone.
I'm searching
for the fractional coordinates of the perovskite-like composite
(C6H5C2H4NH3)2PbI4. Some months ago I was advised to search for these data in
the supplementary material of the J.AM. Chem. Soc,
(1991) 113, 2328-2330 paper.
Unfortunately these data ar
E. Taspinar and A.C. Tas (1997): Low-Temperature Chemical Synthesis of
Lanthanum Monoaluminate. J. Am. Ceram. Soc., 80 [1], 133-141.
(contains results of Rietveld refinement of rhombohedral LaAlO3)
H. Lehnert, H. Boysen, J. Schneider, F. Frey, D. Hohlwein, P. Radaelli, H.
Ehrenberg (2000):
On Tue, 6 Mar 2001 [EMAIL PROTECTED] wrote:
> Have a documented c-value of 5.178A for stoichiometric, hexagonal GaN (PDF
> card #2-1078); can anybody confirm this value and its uncertainty or are
> there updated and/or more precise c-values for GaN (Ga:N=1) available?
>
> L. Keller
>
We ha
Dear J. Bergmann and R. Kleeberg,
Thank you both for the information.
On 03/07 at 04:07PM, bergmann wrote.
>See http://www.bgmn.de/download-structures.html
The crystallographic information is so useful to us. But,
I am afraid that atom positions can not be derived. I need them, too.
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