2.4k citations · 37.1k across the 249 of their papers we have counts for
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Gyrotropic magnetic effect in metallic chiral magnets
Nisarga Paul, Takamori Park, Jung Hoon Han +1
We study the gyrotropic magnetic effect (GME), the low-frequency limit of optical gyrotropy, in metals and semimetals coupled to chiral spin textures. In these systems, the chiral…
Quantum geometry from the Moyal product: quantum kinetic equation and non-linear response
Takamori Park, Xiaoyang Huang, Lucile Savary +1
We systematically derive the dissipationless quantum kinetic equation for a multi-band free fermionic system with U(1) symmetry. Using the Moyal product formalism, we fully band-di…
Current Switching of Valley Polarization in Twisted Bilayer Graphene
Xuzhe Ying, Mengxing Ye, Leon Balents
Twisted bilayer graphene (TBG) aligned with hexagonal boron nitride (h-BN) substrate can exhibit an anomalous Hall effect at 3/4 filling due to the spontaneous valley polarization…
Hybrid Wannier Chern bands in magic angle twisted bilayer graphene and the quantized anomalous Hall effect
Kasra Hejazi, Xiao Chen, Leon Balents
We propose a method for studying the strong interaction regimes in twisted bilayer graphene using hybrid Wannier functions, that are Wannier-like in one direction and Bloch-like in…
General continuum model for twisted bilayer graphene and arbitrary smooth deformations
Leon Balents
We present a simple derivation of a continuum Hamiltonian for bilayer graphene with an arbitrary smooth lattice deformation -- technically in a fashion parametrized by displacement…
Dimensional crossover in a layered ferromagnet detected by spin correlation driven distortions
A. Ron, E. Zoghlin, L. Balents +2
Magneto-elastic distortions are commonly detected across magnetic long-range ordering (LRO) transitions. In principle, they are also induced by the magnetic short-range ordering (S…
Anomalous Hall effect and topological defects in antiferromagnetic Weyl semimetals: MnSn/Ge
Jianpeng Liu, Leon Balents
We theoretically study the interplay between bulk Weyl electrons and magnetic topological defects, including magnetic domains, domain walls, and vortex lines, in the…
Impurity Bound States and Greens Function Zeroes as Local Signatures of Topology
Robert-Jan Slager, Louk Rademaker, Jan Zaanen +1
We show that the local in-gap Greens function of a band insulator , with the position perpendicular…
Quantum oscillations from a two-dimensional electron gas at a Mott/band insulator interface
Pouya Moetakef, Daniel G. Ouellette, James R. Williams +4
We report on the magnetotransport properties of a prototype Mott insulator/band insulator perovskite heterojunction in magnetic fields up to 31 T and at temperatures between 360 mK…
Weyl superconductors
Tobias Meng, Leon Balents
We study the physics of the superconducting variant of Weyl semimetals, which may be realized in multilayer structures comprising topological insulators and superconductors. We sho…
Topological nodal semimetals
A. A. Burkov, M. D. Hook, Leon Balents
We present a study of "nodal semimetal" phases, in which non-degenerate conduction and valence bands touch at points (the "Weyl semimetal") or lines (the "line node semimetal") in…
Time-reversal invariant realization of the Weyl semimetal phase
Gábor B. Halász, Leon Balents
We propose a realization of the Weyl semimetal phase that is invariant under time reversal and occurs due to broken inversion symmetry. We consider both a simple superlattice model…
Weyl Semimetal in a Topological Insulator Multilayer
A. A. Burkov, Leon Balents
We propose a simple realization of the three-dimensional (3D) Weyl semimetal phase, utilizing a multilayer structure, composed of identical thin films of a magnetically-doped 3D to…
Odd-Integer Quantum Hall Effect in Graphene: Interaction and Disorder Effects
L. Sheng, D. N. Sheng, F. D. M. Haldane +1
We study the competition between the long-range Coulomb interaction, disorder scattering, and lattice effects in the integer quantum Hall effect (IQHE) in graphene. By direct trans…
Semiclassical dynamics and long time asymptotics of the central-spin problem in a quantum dot
Gang Chen, Doron L. Bergman, Leon Balents
The spin of an electron trapped in a quantum dot is a promising candidate implementation of a qubit for quantum information processing. We study the central spin problem of the eff…
Topological invariants of time-reversal-invariant band structures
J. E. Moore, L. Balents
The topological invariants of a time-reversal-invariant band structure in two dimensions are multiple copies of the invariant found by Kane and Mele. Such invariants…
Coulomb drag between two spin incoherent Luttinger liquids
Gregory A. Fiete, Karyn Le Hur, Leon Balents
In a one dimensional electron gas at low enough density, the magnetic (spin) exchange energy between neighboring electrons is exponentially suppressed relative to the character…
Transport in a spin incoherent Luttinger liquid
Gregory A. Fiete, Karyn Le Hur, Leon Balents
We theoretically investigate transport in a spin incoherent one dimensional electron system, which may be realized in quantum wires at low electron density and finite temperature.…
Transition to zero resistance in a two dimensional electron gas driven with microwaves
J. Alicea, L. Balents, M. P. A. Fisher +2
High-mobility 2D electron systems in a perpendicular magnetic field exhibit zero resistance states (ZRS) when driven with microwave radiation. We study the nonequilibrium phase tra…
Numerical study of fractionalization in an Easy-axis Kagome antiferromagnet
D. N. Sheng, Leon Balents
Based on exact numerical calculations, we show that the generalized Kagome spin model in the easy axis limit exhibits a spin liquid, topologically degenerate ground state over a br…
Green's function for magnetically incoherent interacting electrons in one dimension
Gregory A. Fiete, Leon Balents
Using a path integral approach and bosonization, we calculate the low energy asymptotics of the one particle Green's function for a ``magnetically incoherent'' one dimensional stro…
Spin Relaxation in a Two-Dimensional Electron Gas in a Perpendicular Magnetic Field
A. A. Burkov, Leon Balents
We consider the problem of spin relaxation in a two-dimensional electron gas (2DEG) in a perpendicular magnetic field. We assume that the spin relaxation is induced by the Rashba s…
Phase Diagram for Quantum Hall Bilayers at
D. N. Sheng, Leon Balents, Ziqiang Wang
We present a phase diagram for a double quantum well bilayer electron gas in the quantum Hall regime at total filling factor , based on exact numerical calculations of the top…
Fabry-Perot interference and spin filtering in carbon nanotubes
Claudia S. Peca, Leon Balents, Kay Wiese
We study the two-terminal transport properties of a metallic single-walled carbon nanotube with good contacts to electrodes, which have recently been shown [W. Liang et al, Nature…