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Reversal mechanism of an individual Ni nanotube simultaneously studied by torque and SQUID magnetometry

Buchter, A. and Rüffer, D. and Weber, D. P. and Weimann, T. and Zorin, A. B. and Huber, R. and Fontcuberta i Morral, A. and Kleiner, R. and Grundler, D. and Poggio, M. and Nagel, J. and Xue, F. and Kieler, O. F. and Kohlmann, J. and Russo-Averchi, E. and Berberich, P. and Kemmler, M. and Koelle, D. . (2013) Reversal mechanism of an individual Ni nanotube simultaneously studied by torque and SQUID magnetometry. Physical Review Letters, 111 (6). 067202.

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Abstract

Using an optimally coupled nanometer-scale SQUID, we measure the magnetic flux originating from an individual ferromagnetic Ni nanotube attached to a Si cantilever. At the same time, we detect the nanotube’s volume magnetization using torque magnetometry. We observe both the predicted reversible and irreversible reversal processes. A detailed comparison with micromagnetic simulations suggests that vortexlike states are formed in different segments of the individual nanotube. Such stray-field free states are interesting for memory applications and noninvasive sensing.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanotechnologie Argovia (Poggio)
UniBasel Contributors:Buchter, Arne and Xue, Fei and Weber, Dennis Patrick and Poggio, Martino
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Physical Society
ISSN:0031-9007
e-ISSN:1079-7114
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:03 Aug 2018 13:12
Deposited On:13 Sep 2013 07:52

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