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

Request for Foil Spectra
by Kelly, Shelly 04 Mar '09

04 Mar '09

Hi Everyone, I'm planning on submitting a small EXAFS 14 paper on the comparison of S02 from different beamlines using foils of Cu, Pd, Ag, and Au spectra. I've raided the APS/XOR data for Cu and Ag spectra from all around the APS ring. If you would like to donate foil spectra to the cause, we will include you as an author. Please also send the thickness and source of the foil, the beamline that it was collected on, and a reference for the beamline (if possible). I'm not sure that the paper will include all 4 edges. I'm mostly interested in Cu and Ag since I have a fairly complete set of those already. Thanks for your help, Shelly

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Nickel
by maho mah 03 Mar '09

03 Mar '09

dear all, I am interest in NiTi allow.and I done Total electron yield (TEY) method for NiTi .I would like to see together l3 and l2 edges peak versus theorical Ni L3 and L2 edges.I done it using FEFF8 for theorical calculation but it is not similar measured ones.how can I do for this?especially satellite peak does not seem like measured satellite one. thanks for in advance maho mali _________________________________________________________________ Hotmail® is up to 70% faster. Now good news travels really fast. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_HM_70faster_032009

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Cu data
by abhijeet gaur 03 Mar '09

03 Mar '09

Hello everyone I have some copper foil data that is taken from rotating anode spectrometer. But it has lot of errors.So where can I find Cu data taken from rotating anode on the web so that I can correct my data .If someone can share data with me , then it will also be very helpfull. Abhijeet Gaur

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XANES/EXAFS spectrum of AsF3
by Gleb S. Pokrovski 02 Mar '09

02 Mar '09

Hello, I'm looking for XANES/EXAFS at As K-edge of AsF3 (arsenic(III) fluoride) and/or any other As(III) fluorinated compound. Could someone share such spectra with me if he/she have them? Many thanks in advance Gleb

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(no subject)
by Cammelli Sebastiano 02 Mar '09

02 Mar '09

Dear Feff user I had a problem trying to simulate the EXAFS spectrum of a Cu foil. I found a small shift in the k space and I do not know if it is significant and, if it is, how to correct it. In the doc file I attached you will find the details of the problem, the feff.inp and some explications. Do not worry about its size, pictures are large and the feff.inp takes space... Thank you a lot for your help Sebastiano Sebastiano.cammelli(a)psi.ch

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I got that
by abhijeet gaur 24 Feb '09

24 Feb '09

Thanks Dr. Dominik . I should have tried this on web .Anyways thanks again Sir. Abhijeet

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Attachment
by abhijeet gaur 23 Feb '09

23 Feb '09

Hi Dr. Bruce Actually I got the idea that we had to take into account the multiple scatterring path during fitting. But I am not able open the attachment that you have send , it is some vlc media file. Can you please send it in some other format like pdf.I will be very thankfull to you. Abhijeet

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Neagtive amplitude
by abhijeet gaur 22 Feb '09

22 Feb '09

Hi all, I am fitting a *copper foil* . I am getting a good fit after using the *4 single scattering paths* but in case of *fourth path* I am getting *negative amplitude*. What should be the *probable reason* for that as I am getting a *very good fit*. with thanks Abhijeet Gaur

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Disordered shells
by Eugenio Otal 18 Feb '09

18 Feb '09

Hi all, I need to simulate some structural disorder in the first and second shell of interstitial erbium in ZnO for XANES and EXAFS spectra. Which is the best way to obtain information of the spectra variation with structural changes? If I use DEBYE card, how to correlate temperature with structural parameters? Everything is so quite in the line, no messages since 13/feb... Regards, euG

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Artemis fitting problem
by abhijeet gaur 13 Feb '09

13 Feb '09

Hi every one, Actually I want to know that is it necessary to fit Ei, 3rd, 4th, cumulant in the fitting procedure .If yes then please tell me how to get them involve in the fit .when I give parameter like guess 3rd, guess 4th . Artemis dont take them . One more thing is that I am fitting Cu foil, CuO and Cu2O , so how many number of paths should I take . Abhijeet

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