<div class="gmail_quote">In WIEN2k, to do ferromagnetic calculation, I need to specify the spin configuration. However, there are only three options for each atom (-up, -dn, -nm). In cases such as Iron whose spin configuration can be either high-spin or low spin, how can I know the initial spin is configured properly? I have this question because I carried out a ferromagnetic LSDA+U calculation for CaFeO3 and I got a 1.02 Bohr Magneton for Fe. In experiment, Fe has a magnetic moment of 3 Bohr Magneton. I suspect that the initial spin split is not large enough so that my calculation finds a local minimum. Due to crystal field splitting, the spin configuration of Fe is 3 t2g electron +1 eg electron. t2g, How should I specify the initial spin splitting so as to make it large enough.<div>
<br></div><font color="#888888"><div><br></div><div>Yundi</div>
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