Quantum melting of charge ordered states in Transition Metal Dichalcogenide moire systems
ORAL
Abstract
TMD moire systems form a platform for rich interplays between geometric frustration, strong correlation, and quantum fluctuation. Recent experiments [1] at half band filling presented a tantalizing observation of continuous metal-insulator transition (MIT) driven by quantum fluctuation instead of disorder. Motivated by these experiments, we have recently carried out DMRG calculations at 1/2 filling [2] and found a chiral spin liquid phase accompanies the MIT. Here, we turn to fractional filling away from half-filling, where one expects classical charge-ordered states driven by strong further-range interactions[3]. Specifically, we study the quantum melting of the charge-ordered states at 1/3 fillings under the interplay of the strong correlations and the quantum fluctuations using DMRG.
[1] Li, T., Jiang, S., Li, L. et al. Nature 597, 350–354 (2021) .
[2] Zhou, Yiqing, D. N. Sheng, and Eun-Ah Kim. arXiv:2105.07008 (2021).
[3] Xu, Y., Liu, S., Rhodes, D.A. et al. Nature 587, 214–218 (2020); Regan, E.C., Wang, D., Jin, C. et al. Nature 579, 359–363 (2020).
[1] Li, T., Jiang, S., Li, L. et al. Nature 597, 350–354 (2021) .
[2] Zhou, Yiqing, D. N. Sheng, and Eun-Ah Kim. arXiv:2105.07008 (2021).
[3] Xu, Y., Liu, S., Rhodes, D.A. et al. Nature 587, 214–218 (2020); Regan, E.C., Wang, D., Jin, C. et al. Nature 579, 359–363 (2020).
*EAK and YZ acknowledge support by the National Science Foundation through award #OAC-1934714 (Institutes for Data-Intensive Research in Science and Engineering Frameworks) and the DoE through award DE-SC0018946. YZ acknowledges support from the Cornell Fellowship. DNS is supported by the U.S. Department of Energy, Office of Basic Energy Sciences under Grant No. DE-FG02-06ER46305.
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Presenters
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Yiqing Zhou
- Cornell University