Graphene bilayers with a twist

Andrei, Eva Y.; MacDonald, Allan H.

doi:10.1038/s41563-020-00840-0

Graphene bilayers with a twist

Journal Article · Wed Nov 18 00:00:00 EST 2020 · Nature Materials

DOI:https://doi.org/10.1038/s41563-020-00840-0· OSTI ID:1784309

^[1]; MacDonald, Allan H. ^[2]

Rutgers Univ., Piscataway, NJ (United States); rutgers U
Univ. of Texas, Austin, TX (United States)

Near a magic twist angle, bilayer graphene transforms from a weakly correlated Fermi liquid to a strongly correlated two-dimensional electron system with properties that are extraordinarily sensitive to carrier density and to controllable environmental factors such as the proximity of nearby gates and twist-angle variation. Among other phenomena, magic-angle twisted bilayer graphene hosts superconductivity, interaction-induced insulating states, magnetism, electronic nematicity, linear-in-temperature low-temperature resistivity and quantized anomalous Hall states. Here, we highlight some key research results in this field, point to important questions that remain open and comment on the place of magic-angle twisted bilayer graphene in the strongly correlated quantum matter world.

View Accepted Manuscript (DOE)

Research Organization:: Rutgers Univ., Piscataway, NJ (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); Welch Foundation

Grant/Contract Number:: FG02-02ER45958; FG02-99ER45742

OSTI ID:: 1784309

Journal Information:: Nature Materials, Journal Name: Nature Materials Journal Issue: 12 Vol. 19; ISSN 1476-1122

Publisher:: Springer Nature - Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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