EXPERIMENTS IN QUANTUM MAGNETIC-RELAXATION

被引：31

作者：

TEJADA, J

ZHANG, XX

机构：

[1] Facultat de Fisíca, Universitat de Barcelona, 08028 Barcelona

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 140卷

关键词：

D O I：

10.1016/0304-8853(94)00497-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a comprehensive study of low temperature magnetic relaxation in a variety of magnetic systems. We show data for both logarithmic relaxation (many-barrier problem) and exponential decay of magnetization (single-barrier problem). Our key observation is the non-thermal character of the relaxation below a few kelvin. Our data on the exponential relaxation provide, for the first time, an opportunity for a precise comparison between theory and experiment.

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页码：1815 / 1818

页数：4

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