[sdpd] Magnetic space group

["Haifeng Li" <h.f.li...@fz-juelich.de>]

Dear all,

 

 

I am reading one paper (PRB, 55 (1997) 14987) that reported the structural
parameters of LaMnO3. The atomic positions for space group R-3c (NO. 167):
La: 6a(0, 0, 1/4), Mn: 6b(0, 0, 0). and O: 18e (x, 0, 1/4). The magnetic
structural model has P 1 symmetry with Mn moments parallel to the a or b
axis for this phase. 

 

But another paper (Materials Letters 54 (2002) 211-216) reported the Mn
moments parallel to c axis.

 

My question is why they chose P 1 symmetry as the magnetic structural model
and in this case what the Mn magnetic postions are. Thanks.

 

Also, could anybody please recommend some materials for magnetic structure
refinement. I use Fullprof programme. It is the first time for me to refine
low temperature data. Thanks again.

 

 

Yours sincerely

Haifeng Li

 

 

--------------------------------------------------- 

Haifeng Li

 

Forschungszentrum Juelich GmbH 

Institut fuer Festkoerperforschung- Streumethoden 

Building 04.8 --- Office 332

D-52425 Juelich, Germany 

Tel: ++49/ (0)2461-61-2473

Fax: ++49/ (0)2461-61-2610

Email: h.f.li...@fz-juelich.de

Web: http://www.fz-juelich.de/iff/ism

---------------------------------------------------
 
 
 



 



[Non-text portions of this message have been removed]



 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/sdpd/

<*> To unsubscribe from this group, send an email to:
    sdpd-unsubscribe...@yahoogroups.com

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/