On the anisotropies of magnetization and electronic transport of magnetic Weyl semimetal Co3Sn2S2

Abstract

Co3Sn2S2, a quasi-two-dimensional system with kagome lattice, has been found as a magnetic Weyl semimetal recently. In this work, the anisotropies of magnetization and transport properties of Co3Sn2S2 were investigated. The high field measurements reveal a giant magnetocrystalline anisotropy with an out-of-plane saturation field of 0.9 kOe and an in-plane saturation field of 230 kOe at 2 K, showing a magnetocrystalline anisotropy coefficient Ku up to 8.3 * 10^5 J m-3, which indicates that it is extremely difficult to align the small moment of 0.29 μB/Co on the kagome lattice from c axis to ab plane. The out-of-plane angular dependences of Hall conductivity further reveal strong anisotropies in Berry curvature and ferromagnetism, and the vector directions of both are always parallel with each other. For in-plane situation, the longitudinal and transverse measurements for both I parallel a and I perpendicular a cases show that the transport on the kagome lattice is isotropic. These results provide essential understanding on the magnetization and transport behaviors for the magnetic Weyl semimetal Co3Sn2S2.

References in corpus (4)

• Magnetic Weyl Semimetal Phase in a Kagome Crystal
• Negative flat band magnetism in a spin-orbit coupled correlated kagome magnet
• Zero-field Nernst effect in a ferromagnetic kagome-lattice Weyl-semimetal Co3Sn2S2
• Theory for spin torque in Weyl semimetal with magnetic texture

Cited by in corpus (21)

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• Magnetic order induced chiral phonons in a ferromagnetic Weyl semimetal
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• The magnetic structure of the topological semimetal Co${}_3$Sn${}_2$S${}_2$
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• Unconventional critical behaviors at the magnetic phase transition of Co3Sn2S2 kagome ferromagnet
• Quantum Phases of Kagome Electron System with Half-Filled Flat Bands
• Topologically Protected Wormholes in Type-III Weyl Semimetal Co${}_3$In${}_2$X${}_2$ (X = S, Se)
• Anomalous depinning of magnetic domain walls within the ferromagnetic phase of the Weyl semimetal Co3Sn2S2
• Tuning the electronic band structure in a kagome ferromagnetic metal via magnetization
• Unravelling the origin of the peculiar transition in the magnetically ordered phase of the Weyl semimetal Co3Sn2S2
• Magnetic domain depinning as possible evidence for two ferromagnetic phases in LaCrGe${}_3$
• Field Orientation Dependent Magnetic Phases In Weyl Semimetal Co3Sn2S2
• On the Onsager-Casimir reciprocal relations in a tilted Weyl semimetal
• Discovery of terahertz-frequency orbitally-coupled magnons in a kagome ferromagnet
• Magnetic memory and distinct spin populations in ferromagnetic Co3Sn2S2
• Tunable Anomalous Hall Effect in a Kagome Ferromagnetic Weyl Semimetal