Quantized integrated shift effect in multigap topological phases
We show that certain three-dimensional multigap topological insulators can host quantized
integrated shift photoconductivities due to bulk invariants that are defined under reality …
integrated shift photoconductivities due to bulk invariants that are defined under reality …
Nonlinear optical responses and quantum geometry in rhombohedral trilayer graphene
We theoretically study the nonlinear optical response of ABC trilayer graphene with
inversion symmetry broken by the application of a displacement field perpendicular to the …
inversion symmetry broken by the application of a displacement field perpendicular to the …
Quantum geometry and nonlinear optical responses in rhombohedral trilayer graphene
We theoretically study the nonlinear optical response of ABC trilayer graphene with
inversion symmetry broken by the application of a displacement field perpendicular to the …
inversion symmetry broken by the application of a displacement field perpendicular to the …
Deep Band Crossings Enhanced Nonlinear Optical Effects
Nonlinear optical (NLO) effects in materials with band crossings have attracted significant
research interests due to the divergent band geometric quantities around these crossings …
research interests due to the divergent band geometric quantities around these crossings …
Moir\'e amplification of highly tunable shift current response in twisted trilayer graphene
In this work we analyze the shift current conductivity in helical twisted trilayer graphene.
Without loss of generality, we show that the density of states and the twist angle set an upper …
Without loss of generality, we show that the density of states and the twist angle set an upper …
Shift photocurrent vortices from topological polarization textures
RJ Slager, A Agarwal, W Jankowski, D Bennett - 2024 - researchsquare.com
Following the recent interest in van der Waals (vdW) ferroelectrics, topologically nontrivial
polar structures have been predicted to form in twisted bilayers. Due to the unconventional …
polar structures have been predicted to form in twisted bilayers. Due to the unconventional …