Hi Scott,
I believe we had a conversation about this last January.
XAFS is not sensitive to the crystallographic lattice constants. It
measures the spacing between atoms. Because of thermal vibrations and
other disorder terms, the average distance between atoms is larger
than the distance
points (measured by XRD).
Anatoly
From: ifeffit-boun...@millenia.cars.aps.anl.gov on behalf of Matt Newville
Sent: Wed 12/30/2009 11:47 AM
To: XAFS Analysis using Ifeffit
Subject: Re: [Ifeffit] Lattice parameters: EXAFS vs. XRD
Hi Scott,
I believe we had
Thanks, Matt--you give a complete and satisfying discussion of this on
January 23 on this list. I forgot about that because it came at the
tail end of a long discussion as to whether C3 could ever be 0, but I
suspect what you said then was rattling around in the back of my head
and only
Merry Christmas, everyone!
Yes, I'm pondering EXAFS on Christmas...
Here's an issue that I bet has been worked out, and I bet someone on
this list knows the result and where it's been published.
It's well known that the MSRD (sigma squared) for EXAFS differs
substantially from the
Big deal...
We have final exams on Christmas...
Anatoly Frenkel
Yeshiva University
From: ifeffit-boun...@millenia.cars.aps.anl.gov on behalf of Scott Calvin
Sent: Fri 12/25/2009 1:04 PM
To: XAFS Analysis using Ifeffit
Subject: [Ifeffit] Lattice parameters
