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Ferromagnet-coated carbon nanotube tips for high-resolution magnetic force microscopy

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1 Author(s)
Moler, K.A. ; Stanford Univ., Stanford

Nano-magnetic materials and the shrinking bit size of magnetic recording media demand improvement in magnetic imaging techniques and in local magnetic metrology. In this paper, we describe the new ferromagnet-coated carbon nanotube tips and also the improvements in the process and the resulting process yield; present experimental evidence for the ultimate limits on the sensitivity and resolution related to the development of superparamagnetism in the probe tip; and briefly discuss two other promising techniques for quantifying the properties of sub-10-nm nanomagnets.The spatial resolution of Magnetic Force Microscopy (MFM) is limited by the tip's size, shape, and height above the sample surface. Among other recent innovative MFM probes, we recently reported the development of metal-coated carbon nanotube (CCNT) probes to address this need.

Published in:

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Date of Conference:

8-12 May 2006

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