II. Applications of the Josephson Effect
II. Applications of the Josephson Effect
II. Applications of the Josephson Effect
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R. Gross, A. Marx, and F. Deppe © Wal<strong>the</strong>r-Meißner-Institut (2001 - 2013)<br />
4.4.3 Susceptometers<br />
measurement <strong>of</strong> magnetic properties <strong>of</strong> materials<br />
- 1 st or 2 nd order gradiometer & sample in static B field<br />
- sample in one <strong>of</strong> <strong>the</strong> pick-up loops<br />
non-magnetic sample<br />
sample with susceptibilty Â<br />
no output signal<br />
additional flux detected by SQUID<br />
commercial systems: 2 nd order gradiometer, sample axially moving<br />
 with resolution <strong>of</strong> 10 -8 emu @ 1.8 – 400 K up to 7 T<br />
AS-Chap. 4 - 55
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