Abstract
Two electronic magnetic relaxation phenomena are reported for the manganese ferrite system, which are both explained by electron hopping processes between octahedral iron ions: the first one by hopping between Fe2+ and Fe3+ ions with a Mn2+-ion as nearest neighbor and the second one by hopping between iron ions with only iron nearest neighbors. Electrical conductivity measurements performed on a single crystal, showed further that the composition dependence of activation energy for the conductivity behaves in a similar way as the magnetic activation energy which is a strong evidence for the proposed Fe2+-Fe3+ electron exchange mechanism.
| Original language | English |
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| Pages (from-to) | 1907-1909 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 24 |
| Issue number | 2, Pt. 2 |
| DOIs | |
| Publication status | Published - 1988 |