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US 2002/0057085 A1Published application
Squid Microscope
AssigneeForschungszentrum Julich GmbH
InventorsEgon Zimmermann, Helmut Soltner, Walter Glaas, Horst Halling, Mikkail Faley
Life of this patent
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Abstract
In order to measure magnetic characteristics of a sample, the latter is positioned above the SQUID so that both the SQUID and the sample are supported in a vessel in a gaseous nitrogen space above a liquid nitrogen coolant so that the measurement can take place at ambient pressure and in a nitrogen atmosphere.
Claims14
A method of measuring magnetic characteristics of a sample, comprising the steps of:
- (a) cooling a SQUID to a superconducting temperature enabling said SQUID to respond to magnetic characteristics of a sample;
- (b) juxtaposing said SQUID at superconducting temperature and the sample in a gaseous nitrogen atmosphere at ambient pressure;
- and
- (c) effecting a measurement with said SQUID at superconducting temperature of a magnetic property of said sample in said gaseous nitrogen atmosphere at said ambient pressure.
1 more element
A SQUID microscope for measuring magnetic characteristics of a sample, comprising:
- an upwardly open vessel;
- a SQUID holder in said vessel configured to cool a SQUID to a superconducting temperature enabling said SQUID to respond to magnetic characteristics of a sample;
- a SQUID mounted on said SQUID holder in said vessel and adapted to be cooled to said superconducting temperature enabling said SQUID to respond to magnetic characteristics of said sample;
- and
- a sample holder in said vessel carrying a sample juxtaposed with said SQUID in a gaseous nitrogen atmosphere at ambient pressure whereby measurement of a magnetic property of said sample can be effected with said SQUID at superconducting temperature in said gaseous nitrogen atmosphere at said ambient pressure.
2 more elements
Dependencies are inferred from the claim text.