Nanoscale multifunctional sensor formed by a Ni nanotube and a scanning Nb nanoSQUID

Nagel, J. and Buchter, A. and Xue, F. and Kieler, O. F. and Weimann, T. and Kohlmann, J. and Zorin, A. B. and Rüffer, D. and Russo-Averchi, E. and Huber, R. and Berberich, P. and Fontcuberta i Morral, A. and Grundler, D. and Kleiner, R. and Koelle, D. and Poggio, M. and Kemmler, M.. (2013) Nanoscale multifunctional sensor formed by a Ni nanotube and a scanning Nb nanoSQUID. Physical Review B, 88. 064425.

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Official URL: http://edoc.unibas.ch/dok/A6174407

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Nanoscale magnets might form the building blocks of next generation memories. To explore their functionality, magnetic sensing at the nanoscale is key. We present a multifunctional combination of a nanometer-sized superconducting quantum interference device (nanoSQUID) and a Ni nanotube attached to an ultrasoft cantilever as a magnetic tip. By scanning the Nb nanoSQUID with respect to the Ni tube, we map out and analyze their magnetic coupling, demonstrate the imaging of an Abrikosov vortex trapped in the SQUID structure — which is important in ruling out spurious magnetic signals — and reveal the high potential of the nanoSQUID as an ultrasensitive displacement detector. Our results open a new avenue for fundamental studies of nanoscale magnetism and superconductivity.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanotechnologie Argovia (Poggio)
UniBasel Contributors:Poggio, Martino and Buchter, Arne and Xue, Fei
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:03 Aug 2018 13:20
Deposited On:25 Oct 2013 08:33

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