title: On-chip SQUID measurements in the presence of high magnetic fields.
abstract: 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.
authors.affiliation: Department of Physics, Florida State University, Tallahassee, FL 32310, USA. leichen@magnet.fsu.edu
authors.forename: Lei
authors.initials: L
authors.lastname: Chen
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wernsdorfer
authors.forename: Christos
authors.initials: C
authors.lastname: Lampropoulos
authors.forename: George
authors.initials: G
authors.lastname: Christou
authors.forename: Irinel
authors.initials: I
authors.lastname: Chiorescu