Quantum electrometer for time-resolved material science at the atomic lattice scale

Gregor Pieplow, Cem Güney Torun, Charlotta Gurr, Joseph H. D. Munns, Franziska Marie Herrmann, Andreas Thies, Tommaso Pregnolato and Tim Schröder ()
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Gregor Pieplow: Humboldt-Universität zu Berlin
Cem Güney Torun: Humboldt-Universität zu Berlin
Charlotta Gurr: Humboldt-Universität zu Berlin
Joseph H. D. Munns: Humboldt-Universität zu Berlin
Franziska Marie Herrmann: Humboldt-Universität zu Berlin
Andreas Thies: Ferdinand-Braun-Institut (FBH)
Tommaso Pregnolato: Humboldt-Universität zu Berlin
Tim Schröder: Humboldt-Universität zu Berlin

Nature Communications, 2025, vol. 16, issue 1, 1-11

Abstract: Abstract The detection of individual charges plays a crucial role in fundamental material science and the advancement of classical and quantum high-performance technologies that operate with low noise. However, resolving charges at the lattice scale in a time-resolved manner has not been achieved so far. Here, we present the development of an electrometer with 60 ns acquisition steps, leveraging on the spectroscopy of an optically-active spin defect embedded in a solid-state material with a non-linear Stark response. By applying our approach to diamond, a widely used platform for quantum technology applications, we can distinguish the distinct charge traps at the lattice scale, quantify their impact on transport dynamics and noise generation, analyze relevant material properties, and develop strategies for material optimization.

Date: 2025
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DOI: 10.1038/s41467-025-61839-2

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