Peierls transition driven ferroelasticity in two-dimensional $d$-$f$ hybrid magnet

Abstract

For broad nanoscale applications, it is crucial to implement more functional properties, especially those ferroic orders, into two-dimensional materials. Here GdI${}_3$ is theoretically identified as a honeycomb antiferromagnet with large $4f$ magnetic moment. The intercalation of metal atoms can dope electrons into Gd's $5d$-orbitals, which alters its magnetic state and lead to Peierls transition. Due to the strong electron-phonon coupling, the Peierls transition induces prominent ferroelasticity, making it a multiferroic system. The strain from undirectional stretching can be self-relaxed via resizing of triple ferroelastic domains, which can protect the magnet aganist mechnical breaking in flexible applications.

arXiv comment6 pages, 4 figures

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• Magneto-optical Kerr effect and magnetoelasticity in weak ferromagnetic RuF${}_4$ monolayer
• Gadolinium halide monolayers: a fertile family of two-dimensional 4f magnets
• Multiferroic properties of oxygen functionalized magnetic i-MXene
• Promoting $p$-based Hall effects by $p$-$d$-$f$ hybridization in Gd-based dichalcogenides
• Structural reconstruction and anisotropic conductance in $4f$-ferromagnetic monolayer
• Evolution of magnetic phase in two dimensional van der Waals Mn${}_{1-x}$Ni${}_x$PS${}_3$ single crystals
• Oxidation tuning of ferroic transitions in Gd${}_2$C monolayer
• 5d orbital Induced Room Temperature Quantum Anomalous Hall Effect in TbCl
• Controllable magnetic anisotropy and ferroelasticity in superconducting FeSe monolayer with surface fluorine adsorption
• Quasiparticle Dynamics in the 4d-4f Ising-like Double Perovskite Ba2DyRuO6 studied using Neutron Scattering and Machine-Learning Framework
• Transition Metal Dichalcogenide MoS${}_2$: oxygen and fluorine functionalization for selective plasma processing
• Spatial aspects of spin polarization of structurally split surface states in thin films with magnetic exchange and spin-orbit interaction