90 citations · 400 across the 17 of their papers we have counts for
18 papers
Valley-Selective Transport through Structural Domain Walls in Rhombohedral Graphene Quarter Metals
Vo Tien Phong, Pablo San-Jose, Bing Cheng +6
Domain walls separating quarter metals with opposite valley polarizations have recently been imaged in rhombohedral graphene multilayers. Depending on their formation mechanism, th…
Multi-Knob Switchable Chiral Superconductivity Quartet in Rhombohedral Graphene
Zhenqi Hua, Shenyong Ye, Phatthanon Pattanakanvijit +17
Chiral superconductors break orbital time-reversal symmetry and may host topological quasiparticles with non-Abelian statistics. In rhombohedral graphene, superconductivity develop…
Family of High-Chern-Number Orbital Magnets in Twisted Rhombohedral Graphene
Xirui Wang, L. Antonio Benítez, Vo Tien Phong +5
Realizing Chern insulators with Chern numbers greater than one remains a major goal in quantum materials research. Such platforms promise multichannel dissipationless chiral transp…
Band Renormalization, Quarter Metals, and Chiral Superconductivity in Rhombohedral Tetralayer Graphene
Guillermo Parra-Martinez, Alejandro Jimeno-Pozo, Vo Tien Phong +7
Recently, exotic superconductivity emerging from a spin-and-valley-polarized metallic phase has been discovered in rhombohedral tetralayer graphene. To explain this observation, we…
Optical Absorption and Emission from Wannier-Stark Spectra of Moiré Superlattices
Vo Tien Phong, Francisco Guinea, Cyprian Lewandowski
Using a formalism based on the non-Abelian Berry connection, we explore quantum geometric signatures of Wannier-Stark spectra in two-dimensional superlattices. The Stark energy can…
Protected Fermionic Zero Modes in Periodic Gauge Fields
Vo Tien Phong, Eugene J. Mele
It is well-known that macroscopically-normalizable zero-energy wavefunctions of spin- particles in a two-dimensional inhomogeneous magnetic field are spin-polarized an…
Mirror-protected Majorana zero modes in -wave multilayer graphene superconductors
Võ Ti\'ên Phong, Héctor Sainz-Cruz, Eugene J. Mele +1
Inspired by recent experimental discoveries of superconductivity in chirally-stacked and twisted multilayer graphene, we study models of -wave superconductivity on the honeycomb…
Roses in the Nonperturbative Current Response of Artificial Crystals
Christophe De Beule, Vo Tien Phong, E. J. Mele
In two-dimensional artificial crystals with large real-space periodicity, the nonlinear current response to a large applied electric field can feature a strong angular dependence,…
Quantum Geometric Oscillations in Two-Dimensional Flat-Band Solids
Vo Tien Phong, E. J. Mele
Two-dimensional van der Waals heterostructures can be engineered into artificial superlattices that host flat bands with significant Berry curvature and provide a favorable environ…
Junctions and superconducting symmetry in twisted bilayer graphene
Héctor Sainz-Cruz, Pierre A. Pantaleón, Vo Tien Phong +2
Junctions provide a wealth of information on the symmetry of the order parameter of superconductors. We analyze junctions between a scanning tunneling microscope (STM) tip and supe…
Superconductivity and correlated phases in non-twisted bilayer and trilayer graphene
Pierre A. Pantaleon, Alejandro Jimeno-Pozo, Hector Sainz-Cruz +3
Twisted bilayer graphene has a rich phase diagram, including superconductivity. Recently, an unexpected discovery has been the observation of superconductivity in non-twisted graph…
Network model for periodically strained graphene
Christophe De Beule, Vo Tien Phong, E. J. Mele
The long-wavelength physics of monolayer graphene in the presence of periodic strain fields has a natural chiral scattering network description. When the strain field varies slowly…
Interaction-Enhanced Topological Hall Effects in Strained Twisted Bilayer Graphene
Pierre A. Pantaleón, Vo Tien Phong, Gerardo G. Naumis +1
We analyze the effects of the long-range Coulomb interaction on the distribution of Berry curvature among the bands near charge neutrality of twisted bilayer graphene (TBG) closely…
Superconductivity from Repulsive Interactions in Rhombohedral Trilayer Graphene: a Kohn-Luttinger-Like Mechanism
Tommaso Cea, Pierre A. Pantaleón, Vo Tien Phong +1
We study the emergence of superconductivity in rhombohedral trilayer graphene due purely to the long-range Coulomb repulsion. This repulsive-interaction-driven phase in rhombohedra…
Boundary Modes from Periodic Magnetic and Pseudomagnetic Fields in Graphene
Vo Tien Phong, E. J. Mele
Single-layer graphenes subject to periodic lateral strains are artificial crystals that can support boundary spectra with an intrinsic polarity. These are analyzed by comparing the…
Band Structure and Superconductivity in Twisted Trilayer Graphene
Vo Tien Phong, Pierre A. Pantaleón, Tommaso Cea +1
We study the symmetries of twisted trilayer graphene's band structure under various extrinsic perturbations, and analyze the role of long-range electron-electron interactions near…
Effective Interactions in a Graphene Layer Induced by the Proximity to a Ferromagnet
Vo Tien Phong, Niels R. Walet, Francisco Guinea
The proximity-induced couplings in graphene due to the vicinity of a ferromagnetic insulator are analyzed. We combine general symmetry principles and simple tight-binding descripti…
Fermionic Lensing in Smooth Graphene P-N Junctions
Vo Tien Phong, Jian Feng Kong
Focusing of electron waves in graphene p-n junctions is a striking manifestation of fermionic negative refraction. We analyze lensing in smooth p-n junctions and find that it diffe…