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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

Quantum Detection using Magnetic Avalanches in Single-Molecule Magnets

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
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classification physics.ins-det cond-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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Cited by 1 Pith paper

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  1. Refined Sensitivity Estimates for Single-Molecule Magnet Dark Matter Detectors

    hep-ph 2026-07 unverdicted novelty 4.0

    Accounting for the stochastic fraction of spins that relax even when thermal diffusion is fast releases Zeeman energy that lowers the avalanche threshold in SMM dark matter detectors.