Rietveld Refinement using Match!

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  • Опубликовано: 8 ноя 2024

Комментарии • 44

  • @mayanngwynethansino4717
    @mayanngwynethansino4717 Год назад

    Hello! I have already downloaded and installed fullprof but for some reason when I try run it in Match, it says "Fullprof directory unkown". Can you help me? This is my first time using this.

  • @JayakrishnanVB
    @JayakrishnanVB 11 лет назад

    Great job...Expecting more tutorial ..thanks.

  • @sharonmitchell2338
    @sharonmitchell2338 10 лет назад

    Thanks, excellent video for students

  • @manjuvvphysics7837
    @manjuvvphysics7837 9 месяцев назад

    Sir, if 2 entries are present or if a compound contained 2 different CIF files how to do FP in this? I can refine if it is having single entry, if it is purey unknown compound and has more than 1 entry, i am not getting FP in this. Kinldy help..

    • @crystal_impact
      @crystal_impact  9 месяцев назад

      Normally, there is nothing that prevents you from running Rietveld refinement calculations with FullProf/Match! on samples that contains two or more phases: Simply collect entries for all phases in the Match list on the lower right-hand side, then run Rietveld refinement (FullProf). If for one (or more) Match list entries crystal structure data are missing, Match! will ask you to import them from corresponding CIF files. If this does not work in your case, please send me your Match! document file (containing your analysis) as well as the CIF files for all compounds in your Match list by e-mail to putz@crystalimpact.de .
      Please note that it is not possible to run Rietveld refinement calculations for unknown compounds or compounds with unknown crystal structure! You have to solve their crystal structure first, by running indexing and then solving their crystal structure (i.e. get a raw model of the crystal structure) first. For the latter step you could e.g. try to use our software "Endeavour" (www.crystalimpact.de/endeavour/default.htm ).
      Please let me know (preferably by e-mail to putz@crystalimpact.de ) if these hints did not help to answer your question!

  • @longlove2899
    @longlove2899 5 лет назад

    Hi i am a big fab of cyatal impact softwares. But i am facung some problem in refinement. When i tried to refine my data match always says unable to read fplog.log file. How can i solve this problem. I have match 2.2.1 and fullprof 2018 version

  • @kevinandrew4928
    @kevinandrew4928 Год назад

    What to do when when your doping series is not showing in database phase list...neither have I have CIF file? Please explain

    • @crystal_impact
      @crystal_impact  Год назад

      If you know the crystal structure data incl. atomic coordinates and site occupation factors, you could try to manually create a corresponding CIF file yourself, by copying an available CIF file of a similar compound (e.g. from the COD, www.crystallography.net ) and modifying it manually.

  • @science.ashutosh
    @science.ashutosh 10 лет назад

    Very cooperative video... Thanks alot....

  • @rashmeetkaur5756
    @rashmeetkaur5756 2 года назад

    how are you able to import 2 files together(calculated and experimental)? is calculated file cif file?

    • @crystal_impact
      @crystal_impact  2 года назад

      I must admit that I am not sure that I fully understand your question: Which (calculated and experimental) files would you like to import together? By "calculated" file, do you mean the diffraction profile calculated by the Rietveld program (FullProf)? It would be very nice if you could contact me by e-mail (putz@crystalimpact.de) and explain the background of your questions in some more detail.

  • @amakem2425
    @amakem2425 2 года назад

    J'ai un problème avec le logiciel quand j'essaye d'importer le fichier le message suivant s'affiche (unknown file format)

    • @crystal_impact
      @crystal_impact  2 года назад +1

      Match! is capable of importing a large variety of diffraction data file formats (with automatic detection), but there may still be cases where a format is unknown (or where the import is prohibited by some unexpected values in the data). May I please ask you to send me the corresponding diffraction data file by e-mail to putz@crystalimpact.de so that I can check it? Thank you!

  • @m.alejandra1710
    @m.alejandra1710 11 лет назад

    Thanks a lot!. Useful video.

  • @oscarluisgarciaguzman2677
    @oscarluisgarciaguzman2677 4 года назад

    If I have a solid solution and there no cif of that material, is it possible to refine the pattern? I know the material has a hexagonal pattern and I want to know the size particle and strain too. Thank you.

    • @crystal_impact
      @crystal_impact  4 года назад +1

      This is not possible with Match! in combination with FullProf, unfortunately. However, in principle this should work using other tools. You might want to take a look at PONKCS, for example: N.V.Y. Scarlett, I.C. Madsen, "Quantification of phases with partial or no known crystal structures", Powder Diffraction 21(4), 278-284 (2006).

    • @oscarluisgarciaguzman2677
      @oscarluisgarciaguzman2677 4 года назад

      @@crystal_impact For example, I have the material ABxC1-x, can I refine the x-ray pattern from AB and AC cifs?

    • @crystal_impact
      @crystal_impact  4 года назад

      @@oscarluisgarciaguzman2677 No, unfortunately not. Not if a chemical reaction has taken place and a new compound ABxC1-x has formed. (It would only be possible if the original compounds AB and AC still exist and you just have a mixture of their crystallites in their original crystal structures, i.e. (AB)x(AC)y.)

  • @jamalkhatib7610
    @jamalkhatib7610 3 года назад

    Thank you for this information
    How can I get this program?

    • @crystal_impact
      @crystal_impact  3 года назад

      You can get a full featured (but time-limited) demo version of Match! free-of-charge from: www.crystalimpact.de/match/download.htm If you like the software and want to continue using it once the 2 months have passed, you can purchase a license from: www.crystalimpact.de/match/sales.htm

  • @luisborjacastro3186
    @luisborjacastro3186 4 года назад

    when I try to run FP on Match 3, it shows this message C:\Users\user\AppData\Local\Temp\Match3\FullProf_Calc_0001\fpcalc.out,
    is there any solution for that?, Thanks

    • @crystal_impact
      @crystal_impact  4 года назад

      This may either be a hint that there has been some kind of "normal" problem in your Rietveld(FullProf) calculation, or that your version of Match! is not compatible to the FullProf version you are using. (In the past years there have been some changes in FullProf so that more recent versions of this software can no longer be used by older versions of Match! 3.). Please contact us by e-mail (to putz@crystalimpact.de) so that we can check more details and try to find a solution!

  • @basiliojoseaugustojose7154
    @basiliojoseaugustojose7154 Год назад

    Can we do Reitveld with trial version refinement?

    • @crystal_impact
      @crystal_impact  Год назад

      Yes, you can do so (in combination with FullProf). The Match! trial version is fully functional and equivalent to the fully licensed version, the only restriction being the time limitation (2 months).

  • @javiergonzalezplatas7139
    @javiergonzalezplatas7139 11 лет назад

    Good job!!!

  • @lethanhcong2627
    @lethanhcong2627 9 лет назад

    well done, thanks

  • @omarfaysal6443
    @omarfaysal6443 3 года назад

    i want to set the experimental details put the small box didn't show up, so please how can i change the experimental details?

    • @crystal_impact
      @crystal_impact  3 года назад

      The "Experimental details" window is only displayed if either your diffraction data file does not contain any wavelength information at all, or if it is not clear and needs to be confirmed by the user. Even when the window is not shown at pattern import, you can also change the wavelength later on (after importing the raw diffraction data), e.g. by clicking on the wavelength label in the lower left-hand corner of the pattern graphics, or by running the menu command "Pattern / Wavelength..."

    • @omarfaysal6443
      @omarfaysal6443 3 года назад

      @@crystal_impact OK. I understand, thank you

  • @islamkhaaalil9451
    @islamkhaaalil9451 3 года назад

    whenever I modify the parameters for refinement, it gives errors and does not work however I followed ur instructions!

    • @crystal_impact
      @crystal_impact  3 года назад

      Could you please save your Match! document and send me the resulting .mtd-file attached to an e-mail (putz@crystalimpact.de)? Without taking a look at your data it is not really possible to give you a reasonable advice in this case...

    • @islamkhaaalil9451
      @islamkhaaalil9451 3 года назад

      @@crystal_impact Do you mean the report pdf?
      I do not know how to save it in .mtd-file...

    • @crystal_impact
      @crystal_impact  3 года назад

      @@islamkhaaalil9451 Please use the menu command "File / Save as..." for this purpose. This will create a "Match! document file" (.mtd) in a directory of your choice.

    • @islamkhaaalil9451
      @islamkhaaalil9451 3 года назад

      @@crystal_impact Thank you for your concern. I have sent you an email.

  • @ElnurOruclu
    @ElnurOruclu 3 года назад

    Despite these instructions, R bragg factor and Chiri are still too high in all my refinements. PLs help

    • @crystal_impact
      @crystal_impact  3 года назад

      Rietveld refinement is not always an easy task, unfortunately. It depends to a large part on the peculiarities of your sample, so it it not possible to provide an exact guideline that would work in each and every case.
      My general advice would be to visually compare your experimental diffraction pattern with the (normally olive-green colored) profile curve calculated in your last Rietveld refinement. Look for major differences (e.g. peak shifts), think about potential origins for the problem (e.g. zero-point or unit cell parameters), and then try to refine just the corresponding Rietveld parameters in the next calculation.
      If a refinement is not successful, go back one step (in Match!: "Undo"), then try another suitable parameter. Try to keep the numbers you refine at the same time as small as possible until you reach a good agreement between experimental and calculated profile, then add more and more parameters in order to check if your model is "robust".
      I have tried to compile some general hints on Rietveld refinement with Match!/FullProf here: www.crystalimpact.de/match/help/idh_Rietveld_Hints.htm

    • @ElnurOruclu
      @ElnurOruclu 3 года назад

      @@crystal_impact Thanks for the kind suggestions. Please share more videos about Rietveld refinement with MATCH 3

  • @torosolerangienatalia4268
    @torosolerangienatalia4268 4 года назад

    How can i download the program?

    • @crystal_impact
      @crystal_impact  4 года назад +1

      You can download and install a demo version for Match! from www.crystalimpact.de/match/download.htm#download . The FullProf software for Rietveld refinement is available free-of-charge either from our (Crystal Impact) web page www.crystalimpact.de/match/download.htm#download_fp or from the original FullProf page www.ill.eu/sites/fullprof/php/downloads.html .

  • @diptenduroy6188
    @diptenduroy6188 7 лет назад

    Nice video

  • @amandamartins8060
    @amandamartins8060 2 года назад

    I'm having a problem with the software. When I try to run an analysis the following message shows up: "unable to read the Fullprof log file ('fplog.log')". I've already tried to reinstall the program, change the pathway and it did not work. I couldn't find a solution neither on the manual or the internet. Please, can anyone help me?

    • @crystal_impact
      @crystal_impact  2 года назад

      This may happen depending on the versions of Match! and FullProf you are using, because there have been some major changes of the FullProf program and the run-time libraries it requires in the past (so older versions of Match! may not be compatible with recent versions of FullProf and vice versa).
      Could you please save your Match! document and send it to me by e-mail (putz@crystalimpact.de ), so that I can check this issue in more detail? Thank you very much in advance!

    • @amandamartins8060
      @amandamartins8060 2 года назад

      ​@@crystal_impact I'm using Mach 3.0 and FullProf 2018. I'm going to send to you the requested data. Thank you very much for the quick answer!

    • @crystal_impact
      @crystal_impact  2 года назад +1

      @@amandamartins8060 Match! 3.0 is pretty old by now, so I am sure that this version is no longer compatible with the 2018 version of FullProf. I will know more when I have received your file.