Abstrakti
In this work we investigate the effect of a constant external, or artificial, magnetic field on the nonlinear response of two-dimensional (2D) Weyl materials. We calculate the Landau levels for tilted cones in 2D Weyl materials by treating the tilting in a perturbative manner and employ perturbation theory to calculate the tilting-induced correction to the magnetic field induced Landau spectrum. We then calculate the induced current as a function of the tilting coefficients and extract the corresponding nonlinear signal. Then, we analyze how changing the tilting parameter affects the nonlinear signal. Our findings show the possibility of achieving a significant tunability of the nonlinear response by suitably engineering the orientation and degree of tilt of Dirac cones in 2D Weyl materials.
| Alkuperäiskieli | Englanti |
|---|---|
| Artikkeli | 245425 |
| Julkaisu | Physical Review B |
| Vuosikerta | 107 |
| Numero | 24 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - 26 kesäk. 2023 |
| OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Rahoitus
Y.T. and M.O. acknowledge the financial support from the Academy of Finland Flagship Programme, Photonics research and innovation (PREIN), Decision No. 320165. Y.T. also acknowledges support from the Finnish Cultural Foundation, Decision No. 00221008. L.D.M.V. acknowledges support from the European Commission under the EU Horizon 2020 MSCA-RISE-2019 program (Project No. 873028 HYDROTRONICS) and from the Leverhulme Trust under Grant No. RPG-2019-363.
Julkaisufoorumi-taso
- Jufo-taso 2
!!ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics