Loading...

Quantum nonlinear planar Hall effect in bilayer graphene: An orbital effect of a steady in-plane magnetic field

Kheirabadi, N ; Sharif University of Technology | 2022

16 Viewed
  1. Type of Document: Article
  2. DOI: 10.1103/PhysRevB.106.245143
  3. Publisher: American Physical Society , 2022
  4. Abstract:
  5. We study the quantum nonlinear planar Hall effect in bilayer graphene under a steady in-plane magnetic field. When time-reversal symmetry is broken by the magnetic field, a charge current occurs in the second-order response to an external electric field as a result of the Berry curvature dipole in momentum space. We show that a nonlinear planar Hall effect originating from the anomalous velocity is caused by an orbital effect of an in-plane magnetic field on electrons in bilayer graphene in the complete absence of spin-orbit coupling. Taking into account the symmetry analysis, we derive the dominant dependence of the Berry curvature dipole moment on the magnetic field components. Moreover, we illustrate how to control and modulate the Berry curvature dipole with an external planar magnetic field, gate voltage, and Fermi energy. © 2022 American Physical Society
  6. Keywords:
  7. Electric fields ; Graphene ; Quantum Hall effect ; Bilayer Graphene ; Charge current ; External electric field ; In-plane magnetic fields ; Momentum spaces ; Orbital effects ; Planar Hall effect ; Second orders ; Time reversal symmetries ; Fruits
  8. Source: Physical Review B ; Volume 106, Issue 24 , 2022 ; 24699950 (ISSN)
  9. URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.106.245143