I don't know how good an estimate of J_0 would be with this method, nevertheless, Curie temp marks the transition from ferro to para, not from ferro to antiferro!
Mighfar Imam, JNCASR, Bangalore. > Hi > > I am calculating the Curie Temperature for Iron. The experimental value > for this is? 1043 K. I am getting the value as 2398.97 K. I am using the > following way to calculate. > Find out the ferromagnetic and anti-ferromagnetic energy of Fe. The > difference between these two gives the value of J_0. Then, > T_c = [2/3] [J_0/K_B] > > Please suggest me what is wrong? Why am I getting such a high value. On > the other hand I am getting very low value for Ni, whose experimental > Curie temperature is 627K and I am getting 315K. > Thanking you in advance, > regards > Padmaja Patnaik > > Research Scholar > > Dept of Physics > > IIT Bombay > > Mumbai, India > > > _______________________________________________ > Pw_forum mailing list > Pw_forum at pwscf.org > http://www.democritos.it/mailman/listinfo/pw_forum >
