Magnetic-field control of topological electronic response near room temperature in correlated Kagome magnets

Abstract

Strongly correlated Kagome magnets are promising candidates for achieving controllable topological devices owing to the rich interplay between inherent Dirac fermions and correlation-driven magnetism. Here we report tunable local magnetism and its intriguing control of topological electronic response near room temperature in the Kagome magnet Fe3Sn2 using small angle neutron scattering, muon spin rotation, and magnetoresistivity measurement techniques. The average bulk spin direction and magnetic domain texture can be tuned effectively by small magnetic fields. Magnetoresistivity, in response, exhibits a measurable degree of anisotropic weak localization behavior, which allows the direct control of Dirac fermions with strong electron correlations. Our work points to a novel platform for manipulating emergent phenomena in strongly-correlated topological materials relevant to future applications.

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Cited by in corpus (17)

• Topological kagome magnets and superconductors
• Electronic nature of chiral charge order in the kagome superconductor CsV3Sb5
• Intrinsic nature of chiral charge order in the kagome superconductor RbV3Sb5
• Probing topological quantum matter with scanning tunnelling microscopy
• Quantum transport evidence of topological band structures of kagome superconductor CsV3Sb5
• Topological charge-entropy scaling in kagome Chern magnet TbMn${}_6$Sn${}_6$
• Topological Quantum Materials with Kagome Lattice
• Orbital Magneto-Nonlinear Anomalous Hall Effect in Kagome Magnet Fe${}_3$Sn${}_2$
• Spin-orbit quantum impurity and quantization in a topological magnet
• Magnetotransport as diagnostic of spin reorientation: kagome ferromagnet as a case study
• How correlations change the magnetic structure factor of the kagome Hubbard model
• Quantum Phases of Kagome Electron System with Half-Filled Flat Bands
• Ground-state magnetic structures of topological kagome metals RV${}_6$Sn${}_6$ (R = Tb, Dy, Ho, Er)
• Nodal line resonance generating the giant anomalous Hall effect of Co${}_3$Sn${}_2$S${}_2$
• Correlation-driven non-trivial phases in single bi-layer Kagome intermetallics
• Crystal structure, properties and pressure-induced insulator-metal transition in layered kagome chalcogenides
• Spin-orbit quantum impurity in a topological kagome magnet