Naiyuan James Zhang
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View article: A Hierarchy of Superconductivity and Topological Charge Density Wave States in Rhombohedral Graphene
A Hierarchy of Superconductivity and Topological Charge Density Wave States in Rhombohedral Graphene Open
Superconductivity and the quantum Hall effect are conventionally regarded as mutually exclusive: superconductivity is suppressed by magnetic fields, whereas the quantum Hall effect relies on them. Here we report a striking exception, where…
View article: Striped Superconductor in Rhombohedral Hexalayer Graphene
Striped Superconductor in Rhombohedral Hexalayer Graphene Open
The nature of a superconductor is fundamentally determined by the symmetries broken in its order parameter. Here, we report an exceptionally exotic superconducting phase in rhombohedral hexalayer graphene that simultaneously breaks rotatio…
View article: Angular Interplay of Nematicity, Superconductivity, and Strange Metallicity in a Moiré Flat Band
Angular Interplay of Nematicity, Superconductivity, and Strange Metallicity in a Moiré Flat Band Open
Superconductivity in strongly correlated electron systems frequently exhibits broken rotational symmetry, raising fundamental questions about the underlying order parameter symmetry. In this work, we demonstrate that electronic nematicity-…
View article: Observation of giant nonlinear Hall conductivity in Bernal bilayer graphene
Observation of giant nonlinear Hall conductivity in Bernal bilayer graphene Open
In a system of two-dimensional electrons, a combination of broken symmetry, interactions, and nontrivial topology can conspire to give rise to a nonlinear transport regime, where electric current density scales as the square of electric fi…
View article: Angle-resolved transport nonreciprocity and spontaneous symmetry breaking in twisted trilayer graphene
Angle-resolved transport nonreciprocity and spontaneous symmetry breaking in twisted trilayer graphene Open
The ability to identify and characterize spontaneous symmetry breaking is central to our understanding of 2D materials with strong correlation, such as the moiré flat bands in magic-angle twisted graphene bilayer and trilayer. In this work…
View article: Coulomb screening and thermodynamic measurements in magic-angle twisted trilayer graphene
Coulomb screening and thermodynamic measurements in magic-angle twisted trilayer graphene Open
The discovery of magic-angle twisted trilayer graphene (tTLG) adds a new twist to the family of graphene moiré. The additional graphene layer unlocks a series of intriguing properties in the superconducting phase, such as the violation of …