Broadband ferromagnetic resonance linewidth measurement by a microstripline transmission resonator

被引：17
|
作者：
Sokolov, Alexander S. [1 ]
Geiler, Michael [1 ]
Harris, Vincent G. [1 ]
机构：
[1] Northeastern Univ, Ctr Microwave Magnet Mat & Integrated Circuits, Boston, MA 02115 USA
来源：
APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 17期
关键词：
SPIN-WAVE INSTABILITY; THIN-FILMS;
D O I：
10.1063/1.4948346
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The application of microstripline transmission resonators to ferromagnetic resonance linewidth measurements, and the linewidth extraction method based on the resonator resonant frequency dispersion are discussed. A detailed description of the spectrometer and the experimental procedure is presented. The limitations of the method and the origin of various errors that may occur in the measurements are considered. The geometry of the resonator was optimized by numerical methods and the radio-frequency magnetic field structure investigated. A series of magnetic films and bulk samples was measured by the spectrometer under varying circumstances, and results were compared to the ones obtained by conventional methods. Published by AIP Publishing.
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页数：5
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