Re: [Wien] Large magnetic moment in LaCoO3 compound in Low Spin state

2013-11-13 Thread Elias Assmann

On 11/13/2013 11:29 AM, saurabh singh wrote:

:MMI002: MAGNETIC MOMENT IN SPHERE   2=1.0879.
It is well known that this compound shows zero moment in ground state
for Low Spin.
Why this is showing non zero moment.


One thing to keep in mind is that you can often stabilize different 
magnetic configurations (which you set in ‘lstart’, whose default is 
‘up’, not ‘nm’!).  These should be compared by total energy.



For spin polarize calculations we apply some field in a particular
direction to split the up and down spin to get the net moment. Is there
any setting in wien2k_13.1 to set the field manually.


You can apply a magnetic field (in some approximation) using ‘orb’ (q.v. 
in the UG).


You can force a particular total spin magnetic moment using ‘runfsm’, 
and ‘runsp_c’ fakes a spin-polarized calculation constraining both spins 
to be the same.  A non-sp ‘run’ would, of course, also force zero moment.


HTH,

Elias


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[Wien] Large magnetic moment in LaCoO3 compound in Low Spin state

2013-11-13 Thread saurabh singh
Dear Wien2K users and developers,
  I am calculating ground state for LaCoO3 in Low Spin
state using wien2k_13.1 version. we have done LSDA calculation and getting
the moment for Cobalt atom
:MMI002: MAGNETIC MOMENT IN SPHERE   2=1.0879.
It is well known that this compound shows zero moment in ground state for
Low Spin.
Why this is showing non zero moment.

For spin polarize calculations we apply some field in a particular
direction to split the up and down spin to get the net moment. Is there any
setting in wien2k_13.1 to set the field manually.

Thanks & Regards
Saurabh Singh
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