Journal
NANOTECHNOLOGY
Volume 21, Issue 43, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/21/43/435501
Keywords
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Funding
- Deutsche Forschungsgemeinschaft
- Marie-Curie RTN CARBIO [MRTN-CT-2006-035616]
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We present a novel ultrahigh stability sensor for quantitative magnetic force microscopy (MFM) based on an iron filled carbon nanotube. In contrast to the complex magnetic structure of conventional MFM probes, this sensor constitutes a nanomagnet with defined properties. The long iron nanowire can be regarded as an extended dipole of which only the monopole close to the sample surface is involved in the imaging process. We demonstrate its potential for high resolution imaging. Moreover, we present an easy routine to determine its monopole moment and prove that this calibration, unlike other approaches, is universally applicable. For the first time this enables straightforward quantitative MFM measurements.
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