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arXiv · 1007.3752

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

L. Chen·W. Wernsdorfer·C. Lampropoulos·G. Christou·I. Chiorescu
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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.

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L. Chen, W. Wernsdorfer, C. Lampropoulos, G. Christou, I. Chiorescu. 2010-09-11. On-chip SQUID measurements in the presence of high magnetic fields. https://doi.org/10.1088/0957-4484%2F21%2F40%2F405504

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