One connector, four scholarly indexes, real DOIs and legal free PDFs. Works in Claude and ChatGPT.
Paste it into Claude or ChatGPT as a custom connector. 3-day free trial.
Yonglong Xie, Andrew T. Pierce, Jeong Min Park, Daniel E. Parker, Eslam Khalaf, Patrick J. Ledwith, Yuan Cao, Seung Hwan Lee, Shao-Wen Chen, Patrick Forrester and 5 more
Fractional Chern insulators (FCIs) are lattice analogues of fractional quantum Hall states that may provide a new avenue towards manipulating non-Abelian excitations. Early theoretical studies 1–7 have predicted their existence in systems with flat Chern bands and highlighted the critical role of a particular quantum geometry. However, FCI states have been observed only in Bernal-stacked bilayer graphene (BLG) aligned with hexagonal boron nitride (hBN) 8 , in which a very large magnetic field is responsible for the existence of the Chern bands, precluding the realization of FCIs at zero field. By contrast, magic-angle twisted BLG 9–12 supports flat Chern bands at zero magnetic field 13–17 , and therefore offers a promising route towards stabilizing zero-field FCIs. Here we report the observation of eight FCI states at low magnetic field in magic-angle twisted BLG enabled by high-resolution local compressibility measurements. The first of these states emerge at 5 T, and their appearance is accompanied by the simultaneous disappearance of nearby topologically trivial charge density wave states. We demonstrate that, unlike the case of the BLG/hBN platform, the principal role of the weak magnetic field is merely to redistribute the Berry curvature of the native Chern bands and thereby realize a quantum geometry favourable for the emergence of FCIs. Our findings strongly suggest that FCIs may be realized at zero magnetic field and pave the way for the exploration and manipulation of anyonic excitations in flat moiré Chern bands.
Formatted from the source metadata, not typed by hand. For a whole reference list, use the citation generator or ask your assistant through Find Research.
Xie, Y., Pierce, A. T., Park, J. M., Parker, D. E., Khalaf, E., Ledwith, P. J., Cao, Y., Lee, S. H., Chen, S.-W., Forrester, P., Watanabe, K., Taniguchi, T., Vishwanath, A., Jarillo‐Herrero, P., & Yacoby, A. (2021). Fractional Chern insulators in magic-angle twisted bilayer graphene. Nature, 600(7889), 439–443. https://doi.org/10.1038/s41586-021-04002-3
Xie, Yonglong, et al. "Fractional Chern insulators in magic-angle twisted bilayer graphene." Nature, vol. 600, no. 7889, 2021, pp. 439–443, https://doi.org/10.1038/s41586-021-04002-3.
Xie, Yonglong, Andrew T. Pierce, Jeong Min Park, Daniel E. Parker, Eslam Khalaf, Patrick J. Ledwith, Yuan Cao, et al. "Fractional Chern insulators in magic-angle twisted bilayer graphene." Nature 600, no. 7889 (2021): 439–443. https://doi.org/10.1038/s41586-021-04002-3.
Xie Y., Pierce A. T., Park J. M. [и др.] Fractional Chern insulators in magic-angle twisted bilayer graphene // Nature. — 2021. — Vol. 600, № 7889. — P. 439–443. — URL: https://doi.org/10.1038/s41586-021-04002-3
@article{xie2021fractional,
title = {{Fractional Chern insulators in magic-angle twisted bilayer graphene}},
author = {Yonglong Xie and Andrew T. Pierce and Jeong Min Park and Daniel E. Parker and Eslam Khalaf and Patrick J. Ledwith and Yuan Cao and Seung Hwan Lee and Shao-Wen Chen and Patrick Forrester and Kenji Watanabe and Takashi Taniguchi and Ashvin Vishwanath and Pablo Jarillo‐Herrero and Amir Yacoby},
journal = {Nature},
year = {2021},
volume = {600},
number = {7889},
pages = {439--443},
doi = {10.1038/s41586-021-04002-3},
url = {https://doi.org/10.1038/s41586-021-04002-3}
}TY - JOUR AU - Xie, Yonglong AU - Pierce, Andrew T. AU - Park, Jeong Min AU - Parker, Daniel E. AU - Khalaf, Eslam AU - Ledwith, Patrick J. AU - Cao, Yuan AU - Lee, Seung Hwan AU - Chen, Shao-Wen AU - Forrester, Patrick AU - Watanabe, Kenji AU - Taniguchi, Takashi AU - Vishwanath, Ashvin AU - Jarillo‐Herrero, Pablo AU - Yacoby, Amir TI - Fractional Chern insulators in magic-angle twisted bilayer graphene JO - Nature VL - 600 IS - 7889 SP - 439 EP - 443 PY - 2021 DA - 2021/12/15 DO - 10.1038/s41586-021-04002-3 UR - https://doi.org/10.1038/s41586-021-04002-3 ER -
Add Find Research to Claude or ChatGPT and ask in plain language. The assistant reads this record, finds the papers around it and cites only what it actually found:
Setup takes about a minute: add the connector, then start the free trial.
Record from OpenAlex; open-access location from Unpaywall and the indexes. Find Research links only to legal copies.