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Exchange parameter
Date: 2015/04/29 21:37
Name: Rakesh Kar   <karphysics@gmail.com>

Dear Sir,

I have made a calculation of exchange coupling in CaFe2As2 under GGA-PBE method. Although spins are found to be in antiferromagnetic order but gives possitive value of exchange coupling between nearest neighbour. What is the wrong here? Please help me.

With best regards,
Rakesh Kar
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