Dear Carlo,
Thank you for the suggestions! Then I will focus on the Mn oxides we measured
together.
Best regards,
Yang
-----Original Message-----
From: Carlo Segre [mailto:segre@iit.edu]
Sent: Monday, May 16, 2022 12:14 AM
To: XAFS Analysis using Ifeffit
Subject: Re: [Ifeffit] [Ext] Re: structure for reference Mn foil
Hi Yang,
The Mn standard reference "foil" is not good for S02 calculation. You are
better off using a Mn sample that has the same kind of local environment as
your unknown materials. If you have oxides, then get a good Mn-oxide
reference material and use that.
Carlo
On Sat, May 14, 2022 at 6:34 AM Matt Newville mailto:newville@cars.uchicago.edu > wrote:
Hi Yang,
On Thu, May 12, 2022 at 1:29 PM Hu, Yang (HIU) mailto:yang.hu@kit.edu > wrote:
Dear IFEFFIT members,
I have been trying to obtain the S02 value from metal reference foils
measured at the beamline.
How was your sample Mn metal prepared? Do you have verification that it is
metallic?
When you say "from metal reference foils measured at the beamline.", I
wonder if that might be the same kind of
"reference foil set" in the wooden jewelry box that we have at our beamline.
Most of these are very good, while some (Pb) degrade over time. Ours has one
labeled "Mn" which is obviously a black powder, probably sintered. I've never
tried to analyze that as BCC Mn and assumed it was stable-ish, but not
metallic. But maybe someone else has tried that.
--Matt
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--
Carlo U. Segre (he/him) -- Duchossois Leadership Professor of Physics
Professor of Materials Science & Engineering Director, Center for Synchrotron
Radiation Research and Instrumentation Illinois Institute of Technology
Voice: 312.567.3498 Fax: 312.567.3494
segre@iit.edu mailto:segre@iit.edu http://phys.iit.edu/~segre
segre@debian.org mailto:segre@debian.org
