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Magnetic Spectroscopy of Individual Atoms, Chains and Nanostructures Read chapter Read first chapter

2018 | OriginalPaper | Chapter

12. Magnetic Behavior of Single Nanostructures and Their Mutual Interactions in Small Ensembles

Authors : Stefan Freercks, Simon Hesse, Alexander Neumann, Philipp Staeck, Carsten Thönnissen, Eva-Sophie Wilhelm, Hans Peter Oepen

Published in: Atomic- and Nanoscale Magnetism

Publisher: Springer International Publishing

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Abstract

A method is introduced that allows for the investigation of the magnetic behavior of single nanostructures in a wide range of temperatures and external magnetic fields. The technique is based on the anomalous Hall Effect utilizing nano-scaled Hall crosses. The nano-devices as well as the nanostructures are created out of sandwich films made from Pt/Co/Pt via ion milling. For the single nanostructures we identify a much too large attempt frequency which is shown to be partially caused by a temperature dependence of the magnetic anisotropy. It is shown that the magnetic behavior of and the mutual interaction in small numbers of nanostructures can be resolved. The interactions cause a strong change of the magnetic behavior of the individual particle particularly in case the system is affected by thermal energy. The latter happens even on a reasonable large scale of particle separation.

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previous chapter Magnetization Dynamics on the Atomic Scale
next chapter Fluctuations and Dynamics of Magnetic Nanoparticles
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Metadata
Title
Magnetic Behavior of Single Nanostructures and Their Mutual Interactions in Small Ensembles
Authors
Stefan Freercks
Simon Hesse
Alexander Neumann
Philipp Staeck
Carsten Thönnissen
Eva-Sophie Wilhelm
Hans Peter Oepen
Copyright Year
2018
Book
Atomic- and Nanoscale Magnetism

Print ISBN: 978-3-319-99557-1

Electronic ISBN: 978-3-319-99558-8

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-99558-8_12

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