Swapping exchange and spin-orbit induced correlated phases in proximitized Bernal bilayer graphene

Zhumagulov, Yaroslav and Kochan, Denis and Fabian, Jaroslav (2024) Swapping exchange and spin-orbit induced correlated phases in proximitized Bernal bilayer graphene. PHYSICAL REVIEW B, 110 (4): 045427. ISSN 2469-9950, 2469-9969

Full text not available from this repository. (Request a copy)

Abstract

Ex-so-tic van der Waals heterostructures take advantage of electrically tunable layer polarization to swap proximity exchange and spin-orbit coupling in the electronically active region. Perhaps the simplest example is Bernal bilayer graphene (BBG) encapsulated by a layered magnet from one side and a strong spin-orbit material from the other. Taking WS2/BBG/Cr2Ge2Te6 as a representative ex-so-tronic device, we employ realistic ab initio inspired Hamiltonians and effective electron-electron interactions to investigate the emergence of correlated phases within the random phase approximation. We find that exchange and spin-orbit coupling induced Stoner and intervalley coherence instabilities can be swapped for a given doping level, allowing one to explore the full spectrum of correlated phases within a single device.

Item Type: Article
Uncontrolled Keywords: COLLECTIVE DESCRIPTION; ELECTRON INTERACTIONS; SUPERCONDUCTIVITY; TRANSITION;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian
Depositing User: Dr. Gernot Deinzer
Date Deposited: 29 Jul 2025 09:11
Last Modified: 29 Jul 2025 09:11
URI: https://pred.uni-regensburg.de/id/eprint/64120

Actions (login required)

View Item View Item