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Nonlinear Hall effect in Rashba systems with hexagonal warping
- Source :
- J. Phys.: Condens. Matter 35, 485301 (2023)
- Publication Year :
- 2023
-
Abstract
- Rashba spin-orbit coupled systems are an important class of materials noted for diverse fundamental and applied phenomena. Recently, the emergence of non-linear Hall effect under conditions of time-reversal symmetry has been discovered in materials with broken inversion symmetry. In this work, we study the second- and third-order Hall response in Rashba systems with hexagonal warping. Starting with a low-energy model, we obtain the analytic expressions and discover the unique dipole profile in Rashba systems with hexagonal warping. Furthermore, we extend the analysis using a realistic tight-binding model. Next, we predict the existence of a third-order Hall effect in these systems, and calculate the Berry connection polarizability tensor analytically. We also show how the model parameters affect the third-order conductivity. Our predictions can help in the experimental realization of Berry curvature multipole physics in Rashba materials with hexagonal warping, and provide a new platform for engineering the non-linear Hall effects.<br />Comment: Published version
- Subjects :
- Condensed Matter - Mesoscale and Nanoscale Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- J. Phys.: Condens. Matter 35, 485301 (2023)
- Publication Type :
- Report
- Accession number :
- edsarx.2308.10056
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1361-648X/acf1eb