Enhanced anomalous Nernst effect in disordered Dirac and Weyl materials

Abstract

We analyze the thermoelectric response of Dirac and Weyl semimetals using the semiclassical approach, focusing on the extrinsic contributions due to skew-scattering and side jump. Our results apply to linear response Nernst effect in ferromagnetic Dirac materials such as Fe${}_3$Sn${}_2$, Weyl semimetal Co${}_3$Sn${}_2$S${}_2$ and to second order response of monolayer graphene on hBN with trigonal warping. Our analysis indicates that the extrinsic contributions can be a significant component of anomalous Nernst response and used to explain an enhanced thermoelectric response.

12 pages, 3 figures

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Cited by in corpus (13)

• Magnon-induced Giant Anomalous Nernst Effect in Single Crystal MnBi
• First-principles investigation of magnetic and transport properties in hole-doped shandite compounds Co${}_3$In${}_x$Sn${}_{2-x}$S${}_2$
• Magnetic warping in topological insulators
• Topological and disorder corrections to the transverse Wiedemann-Franz law and Mott relation in kagome magnets
• Disorder- and Topology-Enhanced Fully Spin-Polarized Currents in Nodal Chain Spin-Gapless Semimetals
• Disorder Induced Anomalous Hall Effect in Type-I Weyl Metals: Connection between the Kubo-Streda Formula in the Spin and Chiral basis
• Intrinsic and extrinsic anomalous transport properties of Heusler ferromagnets Fe${}_2$CoAl and Fe${}_2$NiAl from first principles
• Anomalous Hall effect in type-I Weyl metals beyond the noncrossing approximation
• Giant anomalous Nernst signal in the antiferromagnet YbMnBi2
• Colossal Layer Nernst Effect in Twisted Moiré Layers
• Anomalous Hall effect in disordered Weyl semimetals
• Hall Coulomb drag induced by electron-electron skew scattering
• Anomalous Nernst effect in Co thin films under laser irradiation