Squid stands for superconducting quatum interference device and is
used
as a very sensitive magnetometer. The squid we use is a Quantum Designs MPMS, and we use
it to measure
the magnetic properties of our samples.
Electro-magneto
transport lab
In this lab we have three
cryostats which have superconducting magnets. Here we measure
charge
density, mobility, anamolous Hall effect, Quantum Hall effect and the
Planer Hall effect among other electronic and magnetic
properties. We
have a dilution refrigerator insert which allows us to measure these
properties at temperatures as low as 10 milliKelvin.
The
spintronics MBE is a VEECO GenII MBE system built in 2001, and this
machine is overseen by the MBE
group at UCSB which operates under the faculty supervision of Art
Gossard. The substrate temperature is read by band edge
thermometry, which is much more accurate then thermocouples or
pyrometers. It has cells for In, Cr, Si, Mn, Ga, Al as well as a
valved
As2 cracker. The shutters are computer
controlled by the control software epic.
Other growers include: Roberto Myers,
Jason Stephens,
Mark White and Chad Gallinat.
19 Tesla Magnet
The 19 Tesla magnet is a super conducting solenoid capable of
fields up to 19 Tesla. It is the most powerful Solenoid on the
west coast of the United States.
