RELAXATION EFFECTS IN ANTIFERROMAGNETIC FERROUS CARBONATE

被引：60

作者：

OK, HN

机构：

[1] Solid State and Materials Laboratory, Princeton University, Princeton

[2] Department of Physics, Yonsei University, Seoul

来源：

PHYSICAL REVIEW | 1969年 / 185卷 / 02期

关键词：

D O I：

10.1103/PhysRev.185.472

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Mössbauer studies of antiferromagnetic FeCO3 below and above the Néel temperature show an asymmetric line broadening, and a constant value of 184 kOe of the magnetic hyperfine field from 0to12TN. These phenomena are explained using an Ising model with slow electron relaxation. The relaxation rate decreases with decreasing temperature, suggesting a spin-lattice relaxation. The Néel temperature was found to be (38.3±0.3)°K, which is 3.3°K higher than that measured by neutron diffraction. © 1969 The American Physical Society.

引用

页码：472 / &

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