*.cif files for RMnO3 (R= Sm,Eu,Gd,Dy,Ho,Yb)

2010-03-11 Thread sisir ray
Dear Rietveld community,
I am looking for the latest *.cif files for RMnO3 (R = Sm,Eu,Gd,Dy,Ho,Yb)
compounds in orthorhombic and hexagonal phases .Can any body suggest where I
can find them.
I really appreciate the help.

Thank you

Best
Shishir Ray
Graduate student
University of Wisconsin Milwaukee


Re: *.cif files for RMnO3 (R= Sm,Eu,Gd,Dy,Ho,Yb)

2010-03-11 Thread Holger Putz (Crystal Impact)

Dear Shishir Ray,

in the current release of Pearson's Crystal Data (http://www.crystalimpact.com/pcd 
), there are 29 entries that match your criteria, describing seven  
different orthorhombic phases. 10 entries originate from papers that  
were published in 2005 or later.


Best regards
Holger Putz

Am 11.03.2010 um 21:09 schrieb sisir ray:


Dear Rietveld community,
I am looking for the latest *.cif files for RMnO3 (R =  
Sm,Eu,Gd,Dy,Ho,Yb) compounds in orthorhombic and hexagonal  
phases .Can any body suggest where I can find them.

I really appreciate the help.

Thank you

Best
Shishir Ray
Graduate student
University of Wisconsin Milwaukee


***
Dr. Holger Putz
Crystal Impact
Dr. K. Brandenburg  Dr. H. Putz GbR
Rathausgasse 30
53111 Bonn
Germany

Tel . : +49-228-9813643
Fax   : +49-228-9813644
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Topas prm keyword

2010-03-11 Thread Habib Boughzala
Hi,

My mail is intended to Topas users, especially to Dr. Alan Coelho

I am trying to determine the carbonate / hydroxide ratio in some compounds.
This is a part of 'str' block In the input file (*.inp)
__
Str  

 Prm  oh  0.5

  Site OH num_posns 4 x  0 y  0 z  0.315309 occ O =oh; :  0.5 min =0; max =0
5; beq  1
  Site C num_posns 2 x  0 y  0 z  0 occ C =1 - 0.5 oh; :  1 min =0; max =0.5
 beq  1
  Site Oc num_posns 12 x  0.040114 y  0.953411 z  0.629971 occ O =(1 - 0.5
oh) / 3; :  1 min =0; max =0.25; beq  1
__
 
Topas 4.2 run failed...  Error: prm command in unrecognised !!!
 
Any suggestion ?
 
P.S. This keyword is unrecognised too in all tutorials inp file examples !!!
 
Thanks for help
 
Habib
  
Prof. Habib Boughzala. 
Laboratoire de Matériaux et Cristallochimie.
Association Tunisienne de Cristallographie
I.P.E.I.N. Mrezga, 8000. 
Nabeul. Tunisie.faint_grain.jpgIMSTP12.gif