Work

Insulator-metal transition and magnetic crossover in bilayer graphene

Year: 2025

Type: article

Abstract: In-plane magnetic fields offer a relatively unexplored opportunity to alter the band structure of stacks of two-dimensional (2D) materials so that they exhibit the desired physical properties. Here we show that an in-plane magnetic field combined with a transverse electric field can induce an insulator-metal (IM) transition in bilayer graphene. Our study of the magnetic response reveals that the orbital magnetic susceptibility changes from diamagnetic to paramagnetic around the transition point. We discuss several strategies to observe the IM transition, switch the diamagnetism, and more generally control the band structure of stacked 2D materials at experimentally accessible magnetic fields.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.111.125130

Authors: Amarnath Chakraborty, Aleksandr Rodin, Shaffique Adam, Giovanni Vignale

Institutions: University of Missouri, National University of Singapore, Yale-NUS College, Washington University in St. Louis

Language: English

Topic: Graphene research and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: Ministry of Education - Singapore

Award: G1088949837