[Ifeffit] ZrO2 and HfO2 EXAFS spectra

2018-07-23 Thread Martin McBriarty
Friends in XAFS, Do you have any EXAFS spectra of single-phase ZrO2 or HfO2 that you'd be willing to share? In particular, I'm looking for the monoclinic (P21/c), tetragonal (P42/nmc), and orthorhombic (Pbca and Pca21) phases of each material. Bulk, interface-stabilized, pure, or lightly doped

Re: [Ifeffit] Basic questions about the preliminary data processing in Athena

2018-07-23 Thread Carlo Segre
The calibration should be done at the beamline with a foil. Once that is done, then you don't really want to change it. Remember that just shifting the energy is not actually the correct way to do a shift. The energy shift is a non-linear function of the angle (Bragg's Law) and so when

Re: [Ifeffit] Basic questions about the preliminary data processing in Athena

2018-07-23 Thread Haifeng Li
Hi, Carlo, Thanks for your answer. I may ask you more questions. Why you do not recommend to calibrate the data? Calibration is used to find the E0 and match it to the literature data. What is the real difference between calibration and alignment? Thanks, Haifeng On Sun, Jul 22, 2018 at 5:30

Re: [Ifeffit] Fe Standards (Naomi Intrator)

2018-07-23 Thread Denis Testemale
I'm not sure my previous message went through (I think I screwed up the mailing list adress). So here we go again. Dear Naomi, I attach 2 files with the normalized spectra of Fe2+ (50mmol dissolved FeCl2 in 0.5M HCl) and Fe3+ (??mmol dissolved Fe2(SO4)3 in 2M H2SO4) in solution. In both