On-chip SQUID measurements in the presence of high magnetic fields.
We report a low temperature measurement technique and the magnetization data of a quantum molecular spin, by implementing an on-chip SQUID technique. This technique enables SQUID magnetometry in high magnetic fields, up to 7 T. The main challenges and the calibration process are detailed. The measurement protocol is used to observe quantum tunneling jumps of the S = 10 molecular magnet, Mn(12)-tBuAc. The effect of a transverse field on the tunneling splitting for this molecular system is addressed as well.
Chen
Lei
L
Department of Physics, Florida State University, Tallahassee, FL 32310, USA. leichen@magnet.fsu.edu
Wernsdorfer
Wolfgang
W
Lampropoulos
Christos
C
Christou
George
G
Chiorescu
Irinel
I