[Ifeffit] Query regarding measurement uncertainity

2009-01-26 Thread Bindu R.
Dear all, I have one doubt regarding the measurement uncertainty in R- space (εR). In the manual it is written that εR is evaluated from the rms value of FT in the range 15-20 Å. My doubt is. In case the FT in R-space does not extend up to the range mentioned above, then how does the fitt

[Ifeffit] Query regarding error bars

2009-01-09 Thread Bindu R.
Hi all,   Could any tell me in a simple language about the error bars returned by the EXAFS fitting program?   what do they exactly represent?How is it determined?How is the number of iterations decided.In addition to R-factor what are the other parameters which determines

[Ifeffit] Bond lengths

2008-07-25 Thread Bindu R.
Hi,     Could you please clarify me, up to what decimal place in the bond lengths obtained from EXAFS fitting is reliable?   If there are changes in the bond lengths in the fourth decimal place around the region of phase transition, can one consider this as a genuine one even though the error

[Ifeffit] Query regarding inequivalent sites in the EXAFS fitting

2008-02-28 Thread Bindu R.
Dear Bruce, Could you please tell me if there is an option to do the EXAFS fitting for a compound having the absorbing atoms at two inequivalent crystallographic sites. For example, In Ca3Co2O6 compound, the Co ion occupies two inequivalent crystallographic sites with the Co1-O bond distance a

[Ifeffit] (no subject)

2007-11-27 Thread Bindu R.
could you tell me how does one tune the bond angles from the multiple scattreing paths? Bindu Dr.Bindu R. Visiting Scientist DCMP&MS Tata Institute of Fundamental Research Homi Bhabha Road Colaba Mumbai-400 005 India Mobile-919892536830 - Chat on a cool,