Magnetism in Iron at High Temperatures

M. V. You, V. Heine, A. J. Holden, and P. J. Lin-Chung

Phys. Rev. Lett. 44, 1282 – Published 12 May 1980; Erratum Phys. Rev. Lett. 44, 1479 (1980)

ABSTRACT

Magnetism in iron at high temperature is investigated by calculating the total electronic band-structure energy for four types of spin arrangements. A slow smooth spatial variation of spin direction costs relatively little energy and the atomic moment $m$ is reduced only ∼ 10%. More rapid variations have considerably higher energy, which may explain the high degree of short-range order and small $\delta m$ observed at $T\gtrsim T_C$. Other aspects are also discussed.

• Received 26 December 1979

DOI:https://doi.org/10.1103/PhysRevLett.44.1282

©1980 American Physical Society

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