October 2009 - Ifeffit - millenia.cars.aps.anl.gov

Mg K edge measurements
by Amitava D Roy 09 Oct '09

09 Oct '09

Our DCM beamline is capable of measuring magnesium K edge. Amitava Roy J. Bennett Johnston, Sr., Center for Advanced Microstructures and Devices Louisiana State University Baton Rouge, LA 70806 reroy(a)lsu.edu

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Fwd: Mg k-edge and Athena Questions
by Bruce Ravel 08 Oct '09

08 Oct '09

I am forwarding this message to the Ifeffit mailing list, which is the proper forum for Ifeffit software support. Please see http://cars9.uchicago.edu/iffwiki/BruceRavel/FormLetters/HelpRequest I have some comments, which I will post once this gets distributed by the mailing list. ---------- Forwarded Message ---------- Subject: Mg k-edge and Athena Questions Date: Wednesday 07 October 2009 From: fang.fang(a)yale.edu To: bravel(a)bnl.gov Dear Bruce, This is Fang from Yale University, Pfefferle and Haller's group. Besides our research on Co/Pt on your X23A2 and X18B, I am mainly involved in the Mg and B edge measurement. I heard from Paul that you also have anongoing project on Mg k-edge, and the updated Athena could import the raw data from X15B. However, after I installed the most recent version of Ifeffit and installed, they still don't recognize the data file. Could you show me how to import the data? Your help will be greatly appreciated. There is another question come with the seasonal shut down of X15B. Do you know any other active beamlines who are willing to put in the effort to scan Mg k-edge? Since NSLS asked us to put in a substitute beamline after we put in this year's proposal, we thought you might have a much better idea of which beamline to turn for this hard range around 1300eV. Many thanks again, Fang ------------------------------------------------------- -- Bruce Ravel ------------------------------------ bravel(a)bnl.gov National Institute of Standards and Technology Synchrotron Methods Group at NSLS --- Beamlines U7A, X24A, X23A2 Building 535A Upton NY, 11973 My homepage: http://xafs.org/BruceRavel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/

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First shell resolution
by Eugenio Otal 08 Oct '09

08 Oct '09

Hi Bruce, thanks for the help, it was really useful. Regards, euG

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First shell resolution
by Eugenio Otal 08 Oct '09

08 Oct '09

Hello, I have a very noisy signal so I have a relative good signal until k =9. I am trying to fit the first shell and want to know if there are a limit for the subshells resolution if the signal is unavailable for k larger than 9. Regards, euG

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Br K-edge exafs spectrum of NaBr(s) or KBr(s)
by Gleb Pokrovski 08 Oct '09

08 Oct '09

Hello, I'm looking for a good exafs spectrum in transmission mode at Br K-edge of NaBr or KBr solids at ambient or low-temperature conditions. Any help will be referenced and acknowledged. Thanks in advance Gleb

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Tenure track position for chemist
by Scott Calvin 06 Oct '09

06 Oct '09

Hi all, Since presumably a lot of people on this list know early-career chemists with an interest in a position where teaching is valued and they can also collaborate closely with a XAFS expert (that's me, I guess), I thought I'd pass along information on our opening: > Sarah Lawrence College, a coeducational liberal arts college > dedicated to individualized education, invites applications from > broadly trained chemists for a tenure-track position beginning > August 1, 2010. The successful candidate will teach general > chemistry, other undergraduate chemistry courses of interest to > liberal arts students, and upper-level courses including physical > chemistry. An interest in environmental science is desirable. A > commitment to working closely with students on an individual basis > is essential. Candidates should have a Ph.D. in Chemistry or expect > to receive one by August 1, 2010. > > Application materials must include: cover letter, CV, statement of > teaching philosophy and research interests, graduate transcript, > descriptions of two courses suitable for liberal arts students, and > three letters of recommendation (at least one of which must address > the candidate's ability to teach general chemistry). Deadline for > applications is November 16, 2009. To apply for the position please > go to: > > https://slc.simplehire.com/applicants/jsp/shared/frameset/Frameset.jsp?time… > For information on Sarah Lawrence College, our curriculum, teaching > methods, and philosophy of education, please see our Web site at: http://www.slc.edu > . > SLC is an Equal Opportunity Employer committed to achieving a > racially and culturally diverse community. --Scott Calvin Sarah Lawrence College

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Re: [Ifeffit] Ifeffit Digest, Vol 80, Issue 1
by Hashem Stietiya 02 Oct '09

02 Oct '09

Thank you Dr. Segre, So I should not be skeptical if my fitting results return a high Debye Waller value for my first shell as compared with the second shell. I appreciate your help. Hashem Stietiya On Fri, Oct 2, 2009 at 12:00 PM, <ifeffit-request(a)millenia.cars.aps.anl.gov>wrote: > Send Ifeffit mailing list submissions to > ifeffit(a)millenia.cars.aps.anl.gov > > To subscribe or unsubscribe via the World Wide Web, visit > http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit > or, via email, send a message with subject or body 'help' to > ifeffit-request(a)millenia.cars.aps.anl.gov > > You can reach the person managing the list at > ifeffit-owner(a)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. Debye Waller for first shell and second shell (Hashem Stietiya) > 2. Re: Debye Waller for first shell and second shell (Carlo Segre) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 2 Oct 2009 11:04:45 -0500 > From: Hashem Stietiya <mstiet2(a)tigers.lsu.edu> > Subject: [Ifeffit] Debye Waller for first shell and second shell > To: ifeffit(a)millenia.cars.aps.anl.gov > Message-ID: > <c7b8f940910020904ged84c20t305a742484dd1f4b(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Dear All, > > Does the Debye Waller value for the first shell have to be smaller than > that > of the second shell? can you have a situation where the Debye Waller value > for the Zn-O first shell is 0.011 and for the Zn-Fe second shell is 0.003? > so if there is thermal or static disorder in the first coordination > shell,that must be the case for the second coordination shell? > > Best Regards, > > Hashem Stietiya > Louisiana State University >

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Debye Waller for first shell and second shell
by Hashem Stietiya 02 Oct '09

02 Oct '09

Dear All, Does the Debye Waller value for the first shell have to be smaller than that of the second shell? can you have a situation where the Debye Waller value for the Zn-O first shell is 0.011 and for the Zn-Fe second shell is 0.003? so if there is thermal or static disorder in the first coordination shell,that must be the case for the second coordination shell? Best Regards, Hashem Stietiya Louisiana State University

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