Ray Strange initiates a SQUID experiment
Director
Dale Van Harlingen
Email: vanharlingen@uimrl7.mrl.uiuc.edu
Ray Strange (Technician)
Email: strange@uimrl7.mrl.uiuc.edu
This facility, also known as the Magnetic Characterization Facility
(MCF), consists of three SQUID-based magnetometers, a 5T unit, a
low-field (<0.5 uT) instrument and a 7T SQUID unit. The low field instrument
permit the measurement of ac susceptibility in fields up to 1 T and over a
frequency range from 1 mHz to kHz.
These instruments allow a variety of magnetic measurements to be made over the
temperature range of 4 - 300 K and with AC or DC magnetic fields of < 0.5 uT
and up to 7T. A large variety of specimen types can be accommodated and
special expermental arrangements can be made.
The Magnetic Characterization Facility has long played a crucial role in the
characterization of single crystal superconductors prepared and investigated by
members of the Superconductivity IRG. Virtually every sample investigated,
whether by tunneling, microwave, or transport measurements is first carefully
studied in the MCF to determine studies of the scaling of the fluctuation
magnetization of various samples
