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

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

https://sci-hub.tw/https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.44.1282