Resonant magnetic properties of gadolinium-gallium garnet single crystals

被引：3

作者：

Bedyukh, AR ^{[1
]}

Danilov, VV ^{[1
]}

Nechiporuk, AY ^{[1
]}

Romanyuk, VF ^{[1
]}

机构：

[1] Taras Shevchenko Univ, UA-252022 Kiev, Ukraine

来源：

LOW TEMPERATURE PHYSICS | 1999年 / 25卷 / 03期

关键词：

D O I：

10.1063/1.593724

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The results of experimental investigations of resonant magnetic properties of gadolinium-gallium garnet (GGG) single crystals at temperatures 4.2-300 K in the frequency range 1.6-9.3 GHz are considered. It is found that magnetic losses in GGG are determined by the initial splitting of energy levels for gadolinium ions in the garnet crystal lattice and by the dipole broadening. The width and shape of the electron paramagnetic resonance (EPR) line in the GGG crystal, whose asymmetry is manifested most strongly at low frequencies, can be explained by the influence of these factors. Magnetic losses in GGG increase with frequency and upon cooling. It is found that the EPR linewidth increases considerably with decreasing temperature due to the presence of rapidly relaxing impurities. (C) 1999 American Institute of Physics. [S1063-777X(99)00503-4].

引用

页码：182 / 183

页数：2