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Effect of exchange interaction J on magnetic moment of MnO
Author(s)
Thassana, C.
Techitdheera, W.
Date Issued
November 1, 2010
Type
Article
Abstract
This calculation focus on the effect of exchange interaction J and Coulomb interaction U on spin magnetic moments (m s) of MnO by using the local spin density approximation plus the Coulomb interaction (LSDA+U) method within full potential linear muffin-tin orbital (FP-LMTO). Our calculated results indicated that the spin magnetic moments correlated to J and U. The relevant results exhibited the increasing spin magnetic moments with increasing exchange interaction and Coulomb interaction. Furthermore, equations of spin magnetic moment, which h good correspondence to the experimental data 4.58μ B, are defined m s = 0.11J+4.52μ B and m s = 0.03U+4.52μ B. So, the relation of J and U parameter is obtained, it is obviously, J = -0.249U+1.346 eV.
Citation
World Academy of Science Engineering and Technology, 71, 219-221, 2010