146 citations · 557 across the 16 of their papers we have counts for
16 papers
The Position Space Chern Number: A Topological Index for Chiral Magnetic Systems
Zachariah Addison
This paper introduces an index that categorizes the topology of insulating chiral magnetic systems. The position space Chern number, is distinct from its momentum space count…
Local Hall Conductivity in Disordered Topological Insulators
Zachariah Addison, Nandini Trivedi
We derive the expression for the local Hall conductivity for systems that lack translation symmetry and use it to study the local fluctuations of the Hall signal around disordered…
Anomalous and Topological Hall Effects with Phase-Space Berry Curvatures: Electric, Thermal, and Thermoelectric Transport in Magnets
Zachariah Addison, Lauren Keyes, Mohit Randeria
We develop a theory for the electrical and thermal transverse linear response functions such as the Hall, Nernst and thermal Hall effects in magnetic materials that harbor topologi…
Electrically Tunable Magnetoconductance of Close-Packed CVD Bilayer Graphene Layer Stacking Walls
Qicheng Zhang, Sheng Wang, Zhaoli Gao +11
Quantum valley Hall (QVH) domain wall states are a new class of one-dimensional (1D) one-way conductors that are topologically protected in the absence of valley mixing. Developmen…
Theory of Topological Nernst and Thermoelectric Transport in Chiral Magnets
Zachariah Addison, Lauren Keyes, Mohit Randeria
We calculate the thermoelectric transport of spin-orbit coupled conduction electrons in the presence of topological spin textures. We show, within a controlled, semiclassical appro…
Ultrafast laser-driven dynamics in metal-insulator interface
Abdallah AlShafey, Gerard McCaul, Yuan-Ming Lu +6
The nearly free electron metal next to a localized Mott insulating state has been recently proposed as a way to probe Kondo lattice physics and to gain insight into how the two ext…
Flat Bands Arising from Spin-Orbit Assisted Orbital Frustration
Zachariah Addison, Nandini Trivedi
We present general design principles for engineering and discovering periodic systems with flat bands. Our paradigm exploits spin-orbit assisted orbital frustration on a lattice to…
Unified Theory of the Anomalous and Topological Hall Effects with Phase Space Berry Curvatures
Nishchhal Verma, Zachariah Addison, Mohit Randeria
Hall experiments in chiral magnets are often analyzed as the sum of an anomalous Hall effect, dominated by momentum-space Berry curvature, and a topological Hall effect, arising fr…
Orbital Frustration and Emergent Flat Bands
Wenjuan Zhang, Zachariah Addison, Nandini Trivedi
We expand the concept of frustration in Mott insulators and quantum spin liquids to metals with flat bands. We show that when inter-orbital hopping dominates over intra-orbit…
Intrinsic Fermi Surface Contribution to the Bulk Photovoltaic Effect
Lingyuan Gao, Zachariah Addison, E. J. Mele +1
We study the Fermi surface contribution to the nonlinear DC photocurrent at quadratic order in a spatially uniform optical field in the ultra-clean limit. In addition to shift and…
Nonlinear Time Domain Spectroscopy Near a Band Inversion
Zachariah Addison, E. J. Mele
We develop a theory for the nonlinear time domain response of a Weyl semimetal driven by an ultrafast optical pulse. At quadratic order in the driving field we find that the respon…
Quadrupole Topological Photonic Crystals
Li He, Zachariah Addison, Eugene J. Mele +1
Quadrupole topological phases, exhibiting protected boundary states that are themselves topological insulators of lower dimensions, have recently been of great interest. Extensions…
Floquet Chern Insulators of Light
Li He, Zachariah Addison, Jicheng Jin +3
Achieving topologically-protected robust transport in optical systems has recently been of great interest. Most topological photonic structures can be understood by solving the eig…
Optically-Controlled Orbitronics on a Triangular Lattice
Vo Tien Phong, Zachariah Addison, Seongjin Ahn +3
The propagation of electrons in an orbital multiplet dispersing on a lattice can support anomalous transport phenomena deriving from an orbitally-induced Berry curvature. In striki…
Spatially dispersive circular photogalvanic effect in a Weyl semimetal
Zhurun Ji, Gerui Liu, Zachariah Addison +8
Weyl semimetals are gapless topological states of matter with broken inversion and/or time reversal symmetry, which can support unconventional responses to externally applied elect…
Plasmon reflections by topological electronic boundaries in bilayer graphene
Bor-Yuan Jiang, Guang-Xin Ni, Zachariah Addison +7
Domain walls separating regions of AB and BA interlayer stacking in bilayer graphene have attracted attention as novel examples of structural solitons, topological electronic bound…