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PRESSURE EFFECT ON CURIE TEMPERATURE OF COLLECTIVE-ELECTRON FERROMAGNET - ORIGIN OF INVAR EFFECTS

被引：36
作者：
SHIGA, M
机构：
[1] Solid State Division, Atomic Energy Research Establishment, Harwell, Didcot, Berks England
来源：
SOLID STATE COMMUNICATIONS | 1969年 / 7卷 / 07期
关键词：
D O I：
10.1016/0038-1098(69)90874-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The pressure effect on the Curie temperature of the invar alloy is calculated by the molecular field theory for the collective-electron ferromagnet. The bandwidth (W) is assumed to depend on R, the atomic-distance, in such a way that W ∝ R-5. Kanamori's effective correlation energy is employed as the molecular-field constant. The large negative pressure effect, which is observed in the invar alloy is obtained for a parabolic band and a more realistic band. © 1969.
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页码：559 / &
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