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.
| ISBN: | 9783642431524 |
| Publication date: | 11th June 2014 |
| Author: | Amit Finkler |
| Publisher: | Springer an imprint of Springer Berlin Heidelberg |
| Format: | Paperback |
| Pagination: | 62 pages |
| Series: | Springer Theses |
| Genres: |
Spectrum analysis, spectrochemistry, mass spectrometry Condensed matter physics (liquid state and solid state physics) Electricity, electromagnetism and magnetism Nanotechnology Materials science |
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.
Scanning SQUID Microscope for Studying Vortex Matter in Type-II Superconductors features in the following genres: Spectrum analysis, spectrochemistry, mass spectrometry, Condensed matter physics (liquid state and solid state physics), Electricity, electromagnetism and magnetism, Nanotechnology, Materials science
Scanning SQUID Microscope for Studying Vortex Matter in Type-II Superconductors is available in Paperback, Hardback
Scanning SQUID Microscope for Studying Vortex Matter in Type-II Superconductors was written by Amit Finkler and published by Springer an imprint of Springer Berlin Heidelberg
Scanning SQUID Microscope for Studying Vortex Matter in Type-II Superconductors has 62 pages
Yes it is part of Springer Theses series