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Quantum Detection using Magnetic Avalanches in Single-Molecule Magnets

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arxiv 2002.09409 v2 pith:RGBSXI4L submitted 2020-02-21 physics.ins-det cond-mat.mes-hallhep-exhep-ph

Hao Chen , Rupak Mahapatra , Glenn Agnolet , Michael Nippe , Minjie Lu , Philip C. Bunting , Tom Melia , Surjeet Rajendran
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Giorgio Gratta Jeffrey Long
This is my paper · ORCID
classification physics.ins-detcond-mat.mes-hallhep-exhep-ph
keywords detectionenergyquantumavalanchesfirstmagneticsinglesingle-molecule
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The detection of a single quantum of energy with high efficiency and low false positive rate is of considerable scientific interest, from serving as single quantum sensors of optical and infra-red photons to enabling the direct detection of low-mass dark matter. We report the first experimental demonstration of magnetic avalanches induced by scattering of quanta in single-molecule magnet (SMM) crystals made of Mn12-acetate, establishing the use of SMMs as particle detectors for the first time. While the current setup has an energy threshold in the MeV regime, our results motivate the exploration of a wide variety of SMMs whose properties could allow for detection of sub-eV energy depositions.

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