Twisted 2D magnetic heterostructures based on the antiferromagnetic CrSBr semicondutor

• Grant number: 25/11708-1
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2025
• End date: October 31, 2028
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Yara Galvão Gobato
• Grantee: Yara Galvão Gobato
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• City of the host institution: São Carlos
• Associated researchers: Andrey Chaves

Abstract

Two-dimensional (2D) materials/heterostructures are attractive systems for exploring the physics of excitons and valleys, as well as for potential applications in optoelectronics, spintronics, and quantum technologies. The main objective of this research project is to investigate the optical and magneto-optical properties of various samples/devices based on two-dimensional (2D) heterostructures containing the antiferromagnetic semiconductor CrSBr and emerging 2D magnets with perpendicular magnetization (such as CrPS4 and CGT), and monolayers (ML) of transition metal dichalcogenides (TMDs). We intend to manipulate the magnetic properties of CrSBr and the excitonic and valley properties of ML-TMDs in twisted 2D heterostructures through: (i) magnetic proximity effects, (ii) energy and charge transfer controlled by magnetic field, (iii) angle of alignment between layers, (iv) electric field, and (v) electrostatic doping. These studies will contribute to both the understanding of fundamental physics and to possible future applications of magnetic heterostructures in opto-spintronics and quantum technologies. (AU)