Magnetic imaging in thin magnetic films by local spectrometer of ferromagnetic resonance

被引：36

作者：

Belyaev, BA ^{[1
]}

Izotov, AV ^{[1
]}

Leksikov, AA ^{[1
]}

机构：

[1] LV Kirenskii Inst Phys, Russian Acad Sci, Siberian Branch, Krasnoyarsk 660036, Russia

来源：

IEEE SENSORS JOURNAL | 2005年 / 5卷 / 02期

关键词：

ferromagnetic resonance (FMR); magnetic imaging; microstrip resonator; thin magnetic film (TMF);

D O I：

10.1109/JSEN.2004.842293

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The automatized scanning spectrometer of ferromagnetic resonance has been designed for measuring a distribution of in-plane magnetic anisotropy, effective saturation magnetization, coercivity, and other performances across the area of thin magnetic films (TMFs) in a monodomain state. The spectrometer is supplied with a set of plug-in measuring heads overlapping frequency band 0.1 divided by 6.0 GHz. The degree of locality,of measurements in the range 0.3 divided by 2.5 min is defined by the size of the measuring hole in the microstrip resonator built in the head. The signal-to-noise ratio of the heads is not less than 10 for permalloy film of 100-A thickness when the locality of measurements is about 1 mm, and it can be increased considerably in the signal accumulation mode. Magnetic imaging is demonstrated with an example of purposely-stressed TMFs.

引用

页码：260 / 267

页数：8

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