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Title

Assessing composition gradients in multifilamentary superconductors by means of magnetometry methods

Authors
Baumgartner, T
Hecher, J
Bernardi, J
Pfeiffer, S
Eisterer, M
Published in Superconductor Science and Technology. 2017, vol. 30, no. 1, p. 014011
Abstract We present two magnetometry-based methods suitable for assessing gradients in the critical temperature and hence the composition of multifilamentary superconductors: AC magnetometry and scanning Hall probe microscopy. The novelty of the former technique lies in the iterative evaluation procedure we developed, whereas the strength of the latter is the direct visualization of the temperature dependent penetration of a magnetic field into the superconductor. Using the example of a PIT Nb3Sn wire, we demonstrate the application of these techniques, and compare the respective results to each other and to EDX measurements of the Sn distribution within the sub-elements of the wire.
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Research group Groupe Senatore
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BAUMGARTNER, T et al. Assessing composition gradients in multifilamentary superconductors by means of magnetometry methods. In: Superconductor Science and Technology, 2017, vol. 30, n° 1, p. 014011. https://archive-ouverte.unige.ch/unige:92828

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Deposited on : 2017-03-27

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