Electronic Structure of Strongly Correlated Systems

<table>The sketch of the arrangement of exchange interaction parameters within the ribbon of iron atoms. Open circles correspond to <svg height="13.925" id="M1262" style="vertical-align:-0.12538pt" version="1.1" viewbox="0 0 29.275 13.925" width="29.275" xmlns="http://www.w3.org/2000/svg">
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</svg>, while <svg height="13.925" id="M1263" style="vertical-align:-0.12538pt" version="1.1" viewbox="0 0 29.275 13.925" width="29.275" xmlns="http://www.w3.org/2000/svg">
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</svg> cations are noted by the closed circles. The spin moment direction on each Fe site is shown by an arrow.</table>

Advances in Condensed Matter Physics

Electronic Structure of Strongly Correlated Systems

Figure 19