Re: [Ifeffit] Yttrium in alumina GBs

2006-12-20 Thread Carlo Segre
Hi Shan: Sorry this took so long but I wanted to get my facts straight on the structures. From what I can see, Al2O3 and Y2O3 are both more or less octahedrally (6-fold) coordinated. I would expect that you get very similar results with both model (as you do). The only difference might be

Re: [Ifeffit] Yttrium in alumina GBs

2006-12-20 Thread Scott Calvin
Hi Shan, Nothing at all surprising here. In fact, you're getting pretty good results, in my opinion. Your CN insists on being "about" 4.8. When you push the ss, with which CN is correlated, to the top of its fitted range, the CN increases to about 5.2. To me, that says your CN is 4.8 +/ 0.4.

[Ifeffit] Yttrium in alumina GBs

2006-12-20 Thread Shantanu Behera
Thanks Carlo and Scott for ur response. Some numbers from my fits in this regard and some more queries. When I make a cluster based on the Alumina structure (replacing the central Al with Y with relaxed lattice parameters) I get DW 0.0025 +- 0.002, without any restraint. While I restrain the DW

RE: [Ifeffit] Athena problem

2006-12-20 Thread Barton, David (DG)
The oddity that Jeff describes also occurs on the Windows platform (Athena 0.8.050). If you hit the "OK" button in the File-Open window a couple of times while a dataset is being loaded you will multiple instances loaded into the data group list that cannot be selected or deleted. The message

Re: [Ifeffit] Athena problem

2006-12-20 Thread Jeff Terry
Since everyone is bringing up oddities in Athena, at least under Debian, if you click on the load file button a second time after setting up the input file parameters before it has completed loading, you get a second group with the identical name but it is not selectable and cannot be delet

Re: [Ifeffit] Athena problem

2006-12-20 Thread Matt Newville
Hi, I agree that there have been several unrelated "issues" brought up here. Some of them are definitely reproducible, if not necessarily easy to capture as an isolated bug report. The "out of memory" problem that Paul Fons mentioned is definitely due to ifeffit's limited, and fixed memory. Th

RE: [Ifeffit] Athena problem

2006-12-20 Thread Barton, David (DG)
Bruce, I believe I have a sequence of events that you can reproduce this problem of the data selection window locking up in Windows (tested in XP-SP2 and Win2000-SP4) using Athena 0.8.050. #1) Open three data sets #2) Right-click on first dataset choose Plot This Curve..In energy (Left click t

Re: [Ifeffit] High Correlation betn SO2 and ss

2006-12-20 Thread Scott Calvin
Hi Sham, I agree with Carlo. I would also add that you should try different k-weights, including multiple k-weights at once. Since the dependence of S02 and ss on k is quite different, that can often reduce the correlation between the two. --Scott Calvin Sarah Lawrence College At 11:58 PM 1

Re: [Ifeffit] Athena problem

2006-12-20 Thread Scott Calvin
Hi Bruce, I'm not sure about Maura's problem, but most of the rest of the discussion seems to be centered around the same kind of issue. I don't think any of us can give a proper bug report on it; these problems seem to be OS-related and may depend on funny things like what other programs are

Re: [Ifeffit] Athena problem

2006-12-20 Thread Bruce Ravel
Hi folks, I have been following the discussion in the last few days about problems people are having on Windows with Athena and Artemis. I trust that everyone appreciates that my commitment to providing useful, usable software is strong and that I work very hard to meet that commitment. Unfortu