Influence of the magnetic tip in ferromagnetic resonance force microscopy

被引：20
作者：
Charbois, V
Naletov, VV
Ben Youssef, J
Klein, O [1 ]
机构：
[1] CEA, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France
[2] Kazan VI Lenin State Univ, Dept Phys, Kazan 420008, Russia
[3] Lab Magnetisme Bretagne, CNRS, UMR 6135, F-29285 Brest, France
来源：
APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 25期
关键词：
D O I：
10.1063/1.1489475
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We compare mechanically detected ferromagnetic resonance spectra for different separations h between the magnetic tip and sample surface. When the bias field generated by the tip is smaller than a few hundred gauss, the prominent changes are shifts of the entire spectrum (without line shape distortions) to higher frequency as h decreases. These results are in agreement with the Damon and Eshbach model for spin waves propagating in a potential perturbed by the additional field of the probe magnet. It is used to predict the spatial resolution limit for magnetostatic modes bounded by the stray field of the tip. The answer is similar to4 mum for yttrium iron garnet. (C) 2002 American Institute of Physics.
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页码：4795 / 4797
页数：3
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