Advancements in Single-Molecule Electron Spin Resonance Using Atomic Force Microscopy

Scientists have developed a new technique called electron spin resonance atomic force microscopy (ESR-AFM) that allows for the measurement of electron spin resonance (ESR) at the single-molecule level. By using a combination of atomic force microscopy and radio-frequency magnetic fields, researchers were able to drive and probe ESR transitions in individual pentacene molecules. The technique provides atomic-scale local information and offers long coherence times, making it a promising tool for studying quantum systems and conducting fundamental quantum-sensing experiments.