Charge Density Wave and Ferromagnetism in Intercalated CrSBr

Abstract

In materials with one-dimensional electronic bands, electron-electron interactions can produce intriguing quantum phenomena, including spin-charge separation and charge density waves (CDW). Most of these systems, however, are non-magnetic, motivating a search for anisotropic materials where the coupling of charge and spin may affect emergent quantum states. Here, chemical intercalation of the van der Waals magnetic semiconductor CrSBr yields $L{i}_{0.17(2)}(tetrahydrofuran{)}_{0.26(3)}CrSBr$, which possess an electronically driven quasi-1D CDW with an onset temperature above room temperature. Concurrently, electron doping increases the magnetic ordering temperature from 132 K to 200 K and switches its interlayer magnetic coupling from antiferromagnetic to ferromagnetic. The spin-polarized nature of the anisotropic bands that give rise to this CDW enforces an intrinsic coupling of charge and spin. The coexistence and interplay of ferromagnetism and charge modulation in this exfoliatable material provides a promising platform for studying tunable quantum phenomena across a range of temperatures and thicknesses.

Main text: 33 pages, 4 figures, 1 table. Supplementary Information: 21 pages, 10 figures, 2 tables (with minor updates)

References in corpus (21)

• PDFgetX3: A rapid and highly automatable program for processing powder diffraction data into total scattering pair distribution functions
• Observation of Fractionally Quantized Anomalous Hall Effect
• Evidence of high-temperature exciton condensation in 2D atomic double layers
• Controlling many-body states by the electric-field effect in a two-dimensional material
• Classification of Charge Density Waves Based on Their Nature
• Discovery of charge density wave in a correlated kagome lattice antiferromagnet
• Probing spin-charge separation in a Tomonaga-Luttinger liquid
• Magneto-optics in a van der Waals magnet tuned by self-hybridized polaritons
• The bulk van der Waals layered magnet CrSBr is a quasi-1D material
• Dynamic Magnetic Crossover at the Origin of the Hidden-Order in van der Waals Antiferromagnet CrSBr
• Spin waves and magnetic exchange Hamiltonian in CrSBr
• Coexistence and competition of multiple charge-density-wave orders in rare-earth tri-telluride RTe3
• STM Studies of TbTe3: Evidence for a fully Incommensurate Charge Density Wave
• Probing defects and spin-phonon coupling in CrSBr via resonant Raman scattering
• Stripe and short range order in the charge density wave of 1T-Cu${}_x$TiSe${}_2$
• Large Exciton Binding Energy in the Bulk van der Waals Magnet CrSBr
• Ab initio quantum many-body description of superconducting trends in the cuprates
• Charge transfer-induced Lifshitz transition and magnetic symmetry breaking in ultrathin CrSBr crystals
• Atomic-Scale Visualization of a Cascade of Magnetic Orders in the Layered Antiferromagnet $GdT{e}_3$
• Absence of in-gap modes in charge density wave edge dislocations of the Weyl semimetal (TaSe${}_4$)${}_2$I
• Giant gate-tunable renormalization of spin-correlated flat-band states and bandgap in a 2D magnetic insulator

Cited by in corpus (6)

• Surface-Dominated Quantum Metric-Induced Nonlinear Transport in the Layered Antiferromagnet CrSBr
• Ferromagnetism above 200 K in organic-ion intercalated CrSBr
• Magnetically Modulated Electrical Switching in an Antiferromagnetic Transistor
• Van der Waals CrSBr alloys with tunable magnetic and optical properties
• Theory of interaction-induced charge order in CrSBr
• Emergence of a hidden-order phase well below the charge density wave transition in a topological Weyl semimetal (TaSe${}_4$)${}_2$I