Electron Spin Resonance at the Single-Molecule Scale

Sellies, Lisanne and Repp, Jascha (2025) Electron Spin Resonance at the Single-Molecule Scale. WILEY-V C H VERLAG GMBH, WEINHEIM.

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Abstract

Electron spin resonance (ESR) is a widely employed spectroscopic technique for studying systems with unpaired electron spins, such as molecular radicals. Typically, many billions of spins are required to get a detectable ESR signal, which is subject to extensive ensemble averaging. Downscaling ESR to a single molecule allows studying the signatures of each individual molecule separately, applicable to biomolecules in their native environment, for example. Single-molecule ESR offers several novel research avenues, such as in quantum sensing with a single molecule. Over the last decades, four different single-molecule ESR approaches have been developed, which rely on either optically detected magnetic resonance or scanning-probe microscopy. An introduction into these four approaches including their deployment in pioneering works will be provided.

Item Type: Other
Uncontrolled Keywords: MAGNETIC-RESONANCE; PARAMAGNETIC-RESONANCE; OPTICAL-DETECTION; P-TERPHENYL; READ-OUT; PENTACENE; SPECTROSCOPY; MICROSCOPY; TRANSITIONS; NANOSCALE; NV centers; Optically detected magnetic resonance; Scanning probe microscopy; Single-molecule studies
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Experimental and Applied Physics > Group Jascha Repp
Regensburg Center for UltrafastNanoscopy (RUN)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 26 May 2026 05:57
Last Modified: 26 May 2026 05:57
URI: https://pred.uni-regensburg.de/id/eprint/65849

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