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cond-mat.supr-con2024
Superfluid stiffness of twisted multilayer graphene superconductors
Abhishek Banerjee, Zeyu Hao, Mary Kreidel +12
The robustness of the macroscopic quantum nature of a superconductor can be characterized by the superfluid stiffness, , a quantity that describes the energy required to vary…
cond-mat.supr-con2020★ 23 cited
Symmetry constraints on superconductivity in twisted bilayer graphene: Fractional vortices, condensates or non-unitary pairing
Eslam Khalaf, Patrick Ledwith, Ashvin Vishwanath
When two graphene sheets are twisted relative to each other by a small angle, enhanced correlations lead to superconductivity whose origin remains under debate. Here, we derive som…
cond-mat.supr-con2020★ 481 cited
Electric field tunable unconventional superconductivity in alternating twist magic-angle trilayer graphene
Zeyu Hao, A. M. Zimmerman, Patrick Ledwith +6
We construct a van der Waals heterostructure consisting of three graphene layers stacked with alternating twisting angles . At the average twist angle , a…