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On the short range magnetic order of iron aboveT c

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Zeitschrift für Physik B Condensed Matter

Abstract

A derivation of the ordering part of the free energy functional based on an expansion about the free energy of a random CPA tight-binding paramagnetic effective medium is presented. Considering the dominant term of this functional, which is of Heisenberg form, the static magnetic correlation function is calculated within a spherical model approximation. For some parameters a behaviour characteristics for systems with tendency to form helicoidal ordered structure belowT c is observed.

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Authors and Affiliations

  1. Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17/19, PL-60-179, Poznań, Poland

    S. Lipiński

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  1. S. Lipiński
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Lipiński, S. On the short range magnetic order of iron aboveT c . Z. Physik B - Condensed Matter 74, 241–246 (1989). https://doi.org/10.1007/BF01307391

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  • DOI: https://doi.org/10.1007/BF01307391

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