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Alternating current magnetic susceptibility of a molecular magnet submonolayer directly patterned onto a micro superconducting quantum interference device

AuthorsMartínez Pérez, M. J.; Bellido, Elena ; Sesé Monclús, Javier ; Drung, D.; Schurig, T.; Ruiz Molina, Daniel ; Luis, Fernando
Issue DateJul-2011
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 99(3): 032504 (2011)
AbstractWe report the controlled integration, via dip pen nanolithography, of monolayer dots of ferritin-based CoO nanoparticles (12 μB) into the most sensitive areas of a microSQUID sensor. The nearly optimum flux coupling between these nanomagnets and the microSQUID improves the achievable sensitivity by a factor 102, enabling us to measure the linear susceptibility of the molecular array down to very low temperatures (13 mK). This method opens the possibility of applying ac susceptibility experiments to characterize two-dimensional arrays of single molecule magnets within a wide range of temperatures and frequencies.
Description3 páginas, 3 figuras.-- et al.
Publisher version (URL)http://dx.doi.org/10.1063/1.3609859
Appears in Collections:(ICMA) Artículos
(CIN2) Artículos
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