On the short range magnetic order of iron aboveT c
| ISSN: |
1434-6036
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
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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| Type of Medium: |
Electronic Resource
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| URL: |