Nematicity and competing orders in superconducting magic-angle graphene

نویسندگان

چکیده

Strongly interacting electrons in solid-state systems often display tendency towards multiple broken symmetries the ground state. The complex interplay between different order parameters can give rise to a rich phase diagram. Here, we report on identification of intertwined phases with rotational symmetry magic-angle twisted bilayer graphene (TBG). Using transverse resistance measurements, find strongly anisotropic located 'wedge' above underdoped region superconducting dome. Upon crossing dome, reduction critical temperature is observed, similar behavior certain cuprate superconductors. Furthermore, state exhibits response an directional-dependent in-plane magnetic field, revealing nematic pairing across entire These results indicate that fluctuations might play important role low-temperature TBG, and pave way for using highly-tunable moir\'{e} superlattices investigate quantum materials.

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ژورنال

عنوان ژورنال: Science

سال: 2021

ISSN: ['2797-0744', '2797-1031']

DOI: https://doi.org/10.1126/science.abc2836