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Preprint

Local Sensing of Correlated Electrons in Dual-moiré Heterostructures using Dipolar Excitons

MPG-Autoren
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Zhang,  J.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Rubio,  A.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free Electron Laser Science;
Center for Computational Quantum Physics, Simons Foundation Flatiron Institute;
Nano-BioSpectroscopy Group, Departamento de Fisica de Materiales, Universidad del País Vasco;

Externe Ressourcen

https://arxiv.org/abs/2111.09440
(Preprint)

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2111.09440.pdf
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Zitation

Li, W., Devenica, L. M., Zhang, J., Zhang, Y., Lu, X., Watanabe, K., et al. (2021). Local Sensing of Correlated Electrons in Dual-moiré Heterostructures using Dipolar Excitons.


Zitierlink: https://hdl.handle.net/21.11116/0000-0009-85B7-2
Zusammenfassung
Moiré heterostructures are rapidly emerging as a tunable platform to study correlated electronic phenomena. Discovery of exotic quantum phases in moiré systems requires novel probes of charge and spin order. Unlike detection schemes which average over several moiré cells, local sensors can provide richer information with greater sensitivity. We study a WSe2/MoSe2/WSe2 heterotrilayer which hosts excitons and electrons in distinct moiré lattices, and show that localized dipolar excitons are sensitive proximity charge sensors, uncovering numerous correlated electronic states at fractional fillings of the multi-orbital moiré lattice. In addition, the emission polarization can reveal the local electronic spin configuration at different fillings. Our results establish dipolar excitons as promising candidates to study emergent quantum matter and quantum magnetism in moiré crystals with higher spatial resolution.