Theoretical and Experimental Study of Synthetic MFM Tips

	Nanotech 2005 Vol. 2 Technical Proceedings of the 2005 NSTI Nanotechnology Conference and Trade Show, Volume 2 Chapter 11: Characterization Tools and Microscopy
	Theoretical and Experimental Study of Synthetic MFM Tips
Authors:	Y.H. Wu, G. Han and Y.K. Zheng
Affilation:	National University of Singapore, SG
Pages:	715 - 718
Keywords:	MFM tips, synthetic structure, point-dipole response
Abstract:	Recently, we have developed a synthetic MFM tip consisting of two ferromagnetic layers and a non-magnetic spacer [1]. The two ferromagnetic layers are coupled antiferromagnetically so that the MFM works in a differential detection mode. This has led to the enhancement of high-frequency component against the lower frequency counterpart. Experimentally we have also found that the synthetic tip functions as a point-dipole tip. In this paper, we will present a detailed theoretical analysis of the tip and compare the results with experimental data. The effect of spacer thickness on the imaging characteristics of the MFM tip will also be discussed. [1] Y. H. Wu et al, Appl. Phys. Lett. 82, 1748-1750 (2003).
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ISBN:	0-9767985-1-4
Pages:	808
Hardcopy:	$109.95

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