Roadmap on Quantum Magnetic Materials

Abstract

Fundamental research on two-dimensional (2D) magnetic systems based on van der Waals materials has been gaining traction rapidly since their recent discovery. With the increase of recent knowledge, it has become clear that such materials have also a strong potential for applications in devices that combine magnetism with electronics, optics, and nanomechanics. Nonetheless, many challenges still lay ahead. Several fundamental aspects of 2D magnetic materials are still unknown or poorly understood, such as their often-complicated electronic structure, optical properties, and magnetization dynamics, and their magnon spectrum. To elucidate their properties and facilitate integration in devices, advanced characterization techniques and theoretical frameworks need to be developed or adapted. Moreover, developing synthesis methods which increase critical temperatures and achieve large-scale, high-quality homogeneous thin films is crucial before these materials can be used for real-world applications. Therefore, the field of 2D magnetic materials provides many challenges and opportunities for the discovery and exploration of new phenomena, as well as the development of new applications. This Roadmap presents the background, challenges, and potential research directions for various relevant topics in the field on the fundamentals, synthesis, characterization, and applications. We hope that this work can provide a strong starting point for young researchers in the field and provide a general overview of the key challenges for more experienced researchers.

87 pages, 24 figures. Roadmap based on the discussions during the workshop on Quantum Magnetic Materials hosted by the Lorentz Centre in Leiden, the Netherlands (Oct. 2023)

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• Electrically tunable moiré magnetism in twisted double bilayers of chromium triiodide
• Tailoring Magnetism in Self-intercalated Cr1+δTe2 Epitaxial Films
• A Magnon Scattering Platform
• Axion optical induction of antiferromagnetic order
• In-situ exfoliation method of large-area 2D materials
• Quantum Sensing of Spin Transport Properties of an Antiferromagnetic Insulator
• Observation and control of hybrid spin-wave-Meissner-current transport modes
• Broadband microwave detection using electron spins in a hybrid diamond-magnet sensor chip
• Electron-magnon scattering in elementary ferromagnets from first principles: lifetime broadening and band anomalies
• Moiré-driven multiferroic order in twisted CrCl${}_3$, CrBr${}_3$ and CrI${}_3$ bilayers
• Spin States Protected from Intrinsic Electron-Phonon-Coupling Reaching 100 ns Lifetime at Room Temperature in MoSe${}_2$
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• Large-area van der Waals epitaxy and magnetic characterization of Fe${}_3$GeTe${}_2$ films on graphene
• Electronic band structure changes across the antiferromagnetic phase transition of exfoliated MnPS${}_3$ probed by $\mu$-ARPES
• Ultrafast laser-induced spin-lattice dynamics in the van der Waals antiferromagnet CoPS3
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• The impact of valley profile on the mobility and Kerr rotation of transition metal dichalcogenides
• Multi hole bands and quasi 2-dimensionality in Cr2Ge2Te6 studied by angle-resolved photoemission spectroscopy
• Nonlinear dynamics and magneto-elasticity of nanodrums near the phase transition

Cited by in corpus (6)

• Strain Engineering of Magnetoresistance and Magnetic Anisotropy in CrSBr
• Above-room-temperature ferromagnetism in large-area epitaxial Fe3GaTe2/graphene van der Waals heterostructures
• Galvanic intercalation of molecular cations into van der Waals materials
• Momentum-Resolved Electronic Structure and Orbital Hybridization in the Layered Antiferromagnet CrPS${}_4$
• Computational Frameworks for Patterned Two-Dimensional Magnetism
• Modern triad for magnetic material science: geometric shape, electronic bands and spin textures