Contribution of Fe2+, Mn3+and Fe3+ions to the magnetic anisotropy of MgxMn0.6Fe2.4-xO4
- 1 June 1970
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 3 (6) , 1363-1375
- https://doi.org/10.1088/0022-3719/3/6/019
Abstract
The temperature dependences of the saturation magnetization sigma s and of the anisotropy K1 were measured in single crystals of MgxMnyFe3-x-yO4, 01 of Fe2+, Mn3+ and Fe3+ ions in B sites were found. The values H1(=K1per ion) established close to 0K are H1(Fe2+)=0.217 cm-1 per ion, H1(Mn3+)=-0.377cm-1 per ion and H1(Fe3+)=-0.05 cm-1 per ion. From the experimental results it follows that in B sites of the spinel investigated, the ground state of the Fe2+ ion is a singlet, the first excited state is a doublet, and the energy separation between singlet and doublet levels is Et=(1770+or-150) cm-1.Keywords
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