Overview
- Reports on a significant advance in the technology of scanning SQUID techniques for imaging magnetic structures
- Method has the potential to image individual electron spins
- Nominated as an outstanding contribution by the Weizmann Institute of Science
- Includes supplementary material: sn.pub/extras
Part of the book series: Springer Theses (Springer Theses)
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Table of contents (4 chapters)
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Front Matter
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Back Matter
Keywords
About this book
Common methods of local magnetic imaging display either a high spatial resolution and relatively poor field sensitivity (MFM, Lorentz microscopy), or a relatively high field sensitivity but limited spatial resolution (scanning SQUID microscopy). Since the magnetic field of a nanoparticle or nanostructure decays rapidly with distance from the structure, the achievable spatial resolution is ultimately limited by the probe-sample separation. This thesis presents a novel method for fabricating the smallest superconducting quantum interference device (SQUID) that resides on the apex of a very sharp tip. The nanoSQUID-on-tip displays a characteristic size down to 100 nm and a field sensitivity of 10^-3 Gauss/Hz^(1/2). A scanning SQUID microsope was constructed by gluing the nanoSQUID-on-tip to a quartz tuning-fork. This enabled the nanoSQUID to be scanned within nanometers of the sample surface, providing simultaneous images of sample topography and the magnetic field distribution. This microscope represents a significant improvement over the existing scanning SQUID techniques and is expected to be able to image the spin of a single electron.
Authors and Affiliations
Bibliographic Information
Book Title: Scanning SQUID Microscope for Studying Vortex Matter in Type-II Superconductors
Authors: Amit Finkler
Series Title: Springer Theses
DOI: https://doi.org/10.1007/978-3-642-29393-1
Publisher: Springer Berlin, Heidelberg
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer-Verlag GmbH, DE, part of Springer Nature 2012
Hardcover ISBN: 978-3-642-29392-4Published: 18 May 2012
Softcover ISBN: 978-3-642-43152-4Published: 11 June 2014
eBook ISBN: 978-3-642-29393-1Published: 17 May 2012
Series ISSN: 2190-5053
Series E-ISSN: 2190-5061
Edition Number: 1
Number of Pages: XIV, 62
Topics: Spectroscopy and Microscopy, Magnetism, Magnetic Materials, Nanotechnology, Strongly Correlated Systems, Superconductivity