On-chip SQUID measurements in the presence of high magnetic fields

Abstract

We report a low temperature measurement technique and magnetization data of a quantum molecular spin, by implementing an on-chip SQUID technique. This technique enables the SQUID magnetometery in high magnetic fields, up to 7 Tesla. 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, Mn12-tBuAc. The effect of transverse field on the tunneling splitting for this molecular system is addressed as well.

7 pages, 3 figures

References in corpus (3)

• Multiphoton coherent manipulation in large-spin qubits
• Phonon-bottleneck enhanced magnetic hysteresis in a molecular paddle wheel complex of Ru${}_2^{5+}$
• Coherent spin rotation in the presence of a phonon-bottleneck effect

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• Geometric Scaling of the Current-Phase Relation of Niobium Nano-Bridge Junctions
• Fabrication of Nb and MoGe SQUID-on-tip probes by magnetron sputtering
• Dual on-chip SQUID measurement protocol for flux detection in large magnetic fields