Hi all,
Do any of you have a version of Ifeffit compiled for Mac OS 10.5 that
allows more than 256 paths?
--Scott Calvin
Sarah Lawrence College
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Hi Han Sen:
I agree that the small sigma2 values for the MS paths is suspect. The
data is saying that it wants more amplitude from these paths than is
physically possible. One way to increase the amplitude of the paths is
to make the scattering angle closer to 180deg for a linear path. It
is a
On Wednesday 06 October 2010 01:26:55 am Han Sen Soo wrote:
Hello,
I briefly read through the FAQ about this but I'm not sure if it answers my
question. Are there situations where the sigma^2 for a multiple scattering
path can be smaller than the direct paths? So small that they're on the
Hello Shelly and Bruce,
Thank you both for replying. I was wondering if there was some obvious reason
that I missed. But you're both right, I think I will try to re-orientate the
paths to make them more linear and then try the Debye and Einstein models. I
may be back for more before I conclude
Although I agree with the main points that Bruce makes, I do want to
comment on one piece:
On Oct 6, 2010, at 7:03 AM, Bruce Ravel wrote:
.
In no case can I understand a physical explanation for the the MS
sigma^2 being smaller than for the SS.
Actually, there is a physical situation
Thanks, Matt!
--Scott Calvin
Sarah Lawrence College
On Oct 6, 2010, at 9:08 AM, Matt Newville wrote:
Hi Scott,
The attached zip file has dynamic libraries (and static program
ifeffit) built with 1024 paths and feff files. It contains the files
lib/libifeffit.dylib
lib/libifeffit.so
Hello Scott,
Just to make sure I understand what you mean, are you saying that in your 3
atom system, the S1 and S2 atoms have relatively fixed locations but A may have
large vibrational amplitudes in the A-S1 and A-S2 directions? So the round-trip
3 atom MS path has a small sigma^2 value since
On Oct 6, 2010, at 10:41 AM, Han Sen Soo wrote:
Hello Scott,
Just to make sure I understand what you mean, are you saying that in
your 3 atom system, the S1 and S2 atoms have relatively fixed
locations but A may have large vibrational amplitudes in the A-S1
and A-S2 directions? So the
