Hi Matt, Thanks for your prompt response and explanation. Liam Nagle-Cocco (he/his) PhD Student in Condensed Matter Physics | Cavendish Laboratory Welfare Officer 2022-2023 | Jesus College MCR ________________________________ From: Ifeffit on behalf of ifeffit-request@millenia.cars.aps.anl.gov Sent: 13 December 2022 22:53 To: ifeffit@millenia.cars.aps.anl.gov Subject: Ifeffit Digest, Vol 238, Issue 13 Send Ifeffit mailing list submissions to ifeffit@millenia.cars.aps.anl.gov To subscribe or unsubscribe via the World Wide Web, visit https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmillenia.ca... or, via email, send a message with subject or body 'help' to ifeffit-request@millenia.cars.aps.anl.gov You can reach the person managing the list at ifeffit-owner@millenia.cars.aps.anl.gov When replying, please edit your Subject line so it is more specific than "Re: Contents of Ifeffit digest..." Today's Topics: 1. Re: Plotting chi(R) from FEFF in XAS Viewer (Larch) with phase correction (Matt Newville) ---------------------------------------------------------------------- Message: 1 Date: Tue, 13 Dec 2022 16:53:03 -0600 From: Matt Newville To: XAFS Analysis using Ifeffit Subject: Re: [Ifeffit] Plotting chi(R) from FEFF in XAS Viewer (Larch) with phase correction Message-ID: Content-Type: text/plain; charset="utf-8" Hi Liam, Yes, this is not currently available. It would not be hard to enable, but I am not sure it is a great thing to do. I admit that I sort of find that phase-correction plots need a lot of explanation, and so are prone to causing confusion. They might be useful for Pt metal, but they cannot really be correct for multi-atomic systems. Well, I guess "correct" is not the only consideration ;). I guess I would ask if there are suggestions and input from people teaching XAFS on whether phase corrections (and probably a handful of other "tricks" or analysis variations) are actually useful or just confusing. On Tue, Dec 13, 2022 at 7:58 AM Liam Nagle-Cocco wrote:

Dear all,

In Artemis it is possible to plot chi(R) for FEFF-fit, with the phase corrected - i.e. bond length corrected for deltaR. This is shown in this screenshot below ("Use this path for phase corrected plotting"). Is this possible in XAS Viewer?

Liam Nagle-Cocco *(he/his)*

PhD Student in Condensed Matter Physics | Cavendish Laboratory

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