TITLE

Automated and versatile SQUID magnetometer for the measurement of materials properties at millikelvin temperatures

AUTHOR(S)
Morello, A.; Angenent, W. G. J.; Frossati, G.; de Jongh, L. J.
PUB. DATE
February 2005
SOURCE
Review of Scientific Instruments;Feb2005, Vol. 76 Issue 2, p023902
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present the design and construction of a SQUID-based magnetometer for operation down to temperatures T≃10 mK, while retaining the compatibility with the sample holders typically used in commercial SQUID magnetometers. The system is based on a dc-SQUID coupled to a second-order gradiometer. The sample is placed inside the plastic mixing chamber of a dilution refrigerator and is thermalized directly by the 3He flow. To measure the magnetic moment, the sample is moved through the gradiometer coils by lifting the whole dilution refrigerator insert. A home-developed software provides full automation and an easy user interface.
ACCESSION #
15877966

 

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