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Josephson effects in twisted nodal superconductors
Pavel A. Volkov, Shu Yang Frank Zhao, Nicola Poccia +3
Motivated by the recent proposals for unconventional emergent physics in twisted bilayers of nodal superconductors, we study the peculiarities of the Josephson effect at the twiste…
Emergent Interfacial Superconductivity between Twisted Cuprate Superconductors
S. Y. Frank Zhao, Nicola Poccia, Xiaomeng Cui +11
Twisted interfaces between stacked van der Waals cuprate crystals enable tunable Josephson coupling between in-plane anisotropic superconducting order parameters. Employing a novel…
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…
Reply to P. Ao's Comment on "Sign reversing Hall effect in atomically thin high temperature superconductors"
S. Y. Frank Zhao, Nicola Poccia, Margaret G. Panetta +10
We respond to P. Ao's comment in arXiv:1907.09263, which suggests that vortex many-body effects are the origin of Hall sign reversal in few-unit-cell thick Bi-2212 cuprate crystals…
Sign reversing Hall effect in atomically thin high temperature superconductors
S. Y. Frank Zhao, Nicola Poccia, Margaret G. Panetta +10
We fabricate van der Waals heterostructure devices using few unit cell thick BiSrCaCuO for magnetotransport measurements. The superconducting transition tempera…
Nature of the Quantum Metal in a Two-Dimensional Crystalline Superconductor
A. W. Tsen, B. Hunt, Y. D. Kim +7
Two-dimensional (2D) materials are not expected to be metals at low temperature due to electron localization. Consistent with this, pioneering studies on thin films reported only s…
Structure of Flux Line Lattices with Weak Disorder at Large Length Scales
Philip Kim, Zhen Yao, Cristian A. Bolle +1
Dislocation-free decoration images containing up to 80,000 vortices have been obtained on high quality BiSrCaCuO superconducting single crystals. The obse…