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  1. 1 Acta Physica Polonica A

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  1. 1 2004

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  1. 1 Oleś A.

  2. 1 Sikora O.

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Ordered Phases and Magnetic Excitations in Doped Manganites

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Sikora O., Oleś A.
Acta Physica Polonica A
|
2004
|
vol. 106
|
issue 5
659-664
EN
We present theoretical models concerning magnetic and charge ordering in half-doped manganites. The new approach to microscopic description of this group of compounds, taking into consideration the oxygen degrees of freedom, is discussed. The spin wave dispersion relations are shown both in the model of effective spins on Mn ions and in the new approach when two Mn ions form a large effective spin S=7/2.
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