Dear Members,
I am interested to attend the 2011 APS/IIT XAFS Summer school. I have
written to Dr. Bunker for details but however, i am not able to reach him.
I have already written (e-mail) to him on bun...@iit.edu site but i did
not get reply. If dr. Bunker is on the mail list, i expect to reach
Hi Yuan, (Bruce, Matthew),
Yes, the correction described by Tranquada and Ingalls is explicitly
included in ifeffit's fits.
There are a couple different effects going on. Short of doing actual
integrals over g(R), we try to take all the effects into account.
The cumulant expansion models the eff
OK, so if you don't add a sigma2 to your FEFF input file, then IFEFFIT will do
the correction properly. Another question
is whether, if you add a sigma2 to feff.inp, what does FEFF do?
mam
On 4/4/2011 3:37 PM, Bruce Ravel wrote:
On Monday, April 04, 2011 06:01:20 pm Ping, Yuan wrote:
On Monday, April 04, 2011 06:01:20 pm Ping, Yuan wrote:
> So the term is included? Please see the attached paper. I meant the Coj(k)
> in Eq. (5).
The answer is "yes, Matt wrote Ifeffit correctly". But I am beginning
to suspect that I am will never be able to answer your question to
your satisfac
The lambda is in the amplitude.
I assume FEFF does not integrate over the distribution of distances, which is
where the term in question comes from. That is, FEFF
calculates A (complex) in
chi(k) = Im(A(k)*exp(-lambda*R+2*i*k*R)/R^2)
for a single R, but what you want with a non-0 ss (Artemi
On Monday, April 04, 2011 05:25:39 pm Ping, Yuan wrote:
> Does the math expression in IFEFFIT include the term -4k*sigma2*(1/labmda
> +1/R) in the phase? If yes, the 1st cumulant is sigma1= R+dR. If no,
> sigma1= R+dR+2*sigma2*(1/labmda +1/R). It this correct?
When Ifeffit evaluates the exafs equa
Thanks, Bruce.
Does the math expression in IFEFFIT include the term -4k*sigma2*(1/labmda
+1/R) in the phase? If yes, the 1st cumulant is sigma1= R+dR. If no, sigma1=
R+dR+2*sigma2*(1/labmda +1/R). It this correct?
Yuan
On 4/1/11 2:18 PM, "Bruce Ravel" wrote:
> On Friday, April 01, 2011 05:03:
