Field-tunable correlated states in H-stacked twisted MoS<sub>2</sub>.
ORAL
Abstract
Twisted transition metal dichalcogenide bilayers offer a versatile platform for exploring strongly correlated states. Here, we study near H-stacked MoS2 bilayers that realize a multiorbital Hubbard model. The theoretically predicted ultra-flat moire bands at both the valence and conduction band edges strongly enhance electron correlation effects, observable in excitonic spectra. We study the evolution of these correlations under electric and magnetic fields, demonstrating their robustness and tunability arising from the system's unique layer, valley, and orbital degrees of freedom.
*Collaborations at UT-Austin have been enabled by support from the National Science Foundation via MRSEC grants DMR-2308817. Xiaohui Liu, K. Hao, X. Liu acknowledge the support by the Department of Energy, Basic Energy Science program via grant DE-SC0019398 and via contract DE- AC02-76SF00515 for sample preparation effort. H. Yan gratefully acknowledges a fellowship from the Texas Quantum Institute and support from the United States Army Research Office under Grant No. W911NF-25-1-0232.
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Presenters
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Yanrong Yu
- University of Texas at Austin