Indirect magnetic force microscopy

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dc.citation.firstpage2348en_US
dc.citation.journalTitleNanoscale Advancesen_US
dc.citation.lastpage2355en_US
dc.citation.volumeNumber1en_US
dc.contributor.authorSifford, Joshuaen_US
dc.contributor.authorWalsh, Kevin J.en_US
dc.contributor.authorTong, Shengen_US
dc.contributor.authorBao, Gangen_US
dc.contributor.authorAgarwal, Gunjanen_US
dc.date.accessioned2019-08-28T17:01:31Zen_US
dc.date.available2019-08-28T17:01:31Zen_US
dc.date.issued2019en_US
dc.description.abstractMagnetic force microscopy (MFM) is an atomic force microscopy (AFM)-based technique to map magnetic domains in a sample. MFM is widely used to characterize magnetic recording media, magnetic domain walls in materials, nanoparticles and more recently iron deposits in biological samples. However, conventional MFM requires multiple scans of the samples, suffers from various artifacts and is limited in its capability for multimodal imaging or imaging in a fluid environment. We propose a new modality, namely indirect magnetic force microscopy (ID-MFM), a technique that employs an ultrathin barrier between the probe and the sample. Using fluorescently conjugated superparamagnetic nanoparticles, we demonstrate how ID-MFM can be achieved using commercially available silicon nitride windows, MFM probes and AFM equipment. The MFM signals obtained using ID-MFM were comparable to those obtained using conventional MFM. Further, samples prepared for ID-MFM were compatible with multi-modal imaging via fluorescence and transmission electron microscopy. Thus ID-MFM can serve as a high-throughput, multi-modal microscopy technique which can be especially attractive for detecting magnetism in nanoparticles and biological samples.en_US
dc.identifier.citationSifford, Joshua, Walsh, Kevin J., Tong, Sheng, et al.. "Indirect magnetic force microscopy." <i>Nanoscale Advances,</i> 1, (2019) Royal Society of Chemistry: 2348-2355. https://doi.org/10.1039/C9NA00193J.en_US
dc.identifier.doihttps://doi.org/10.1039/C9NA00193Jen_US
dc.identifier.urihttps://hdl.handle.net/1911/107375en_US
dc.language.isoengen_US
dc.publisherRoyal Society of Chemistryen_US
dc.rightsThis Open Access Article is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported Licenceen_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/en_US
dc.titleIndirect magnetic force microscopyen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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