Nonlinear magnetotransport shaped by Fermi surface topology and convexity in WTe2

Abstract

The nature of Fermi surface defines the physical properties of conductors and many physical phenomena can be traced to its shape. Although the recent discovery of a current-dependent nonlinear magnetoresistance in spin-polarized non-magnetic materials has attracted considerable attention in spintronics, correlations between this phenomenon and the underlying fermiology remain unexplored. Here, we report the observation of nonlinear magnetoresistance at room temperature in a semimetal WTe2, with an interesting temperature-driven inversion. Theoretical calculations reproduce the nonlinear transport measurements and allow us to attribute the inversion to temperature-induced changes in Fermi surface convexity. We also report a large anisotropy of nonlinear magnetoresistance in WTe2, due to its low symmetry of Fermi surfaces. The good agreement between experiments and theoretical modeling reveals the critical role of Fermi surface topology and convexity on the nonlinear magneto-response. These results lay a new path to explore ramifications of distinct fermiology for nonlinear transport in condensed-matter.

References in corpus (11)

• Quantum Spin Hall Effect and Topological Field Effect Transistor in Two-Dimensional Transition Metal Dichalcogenides
• Titanic Magnetoresistance in WTe2
• Observation of the Quantum Spin Hall Effect up to 100 Kelvin in a Monolayer Crystal
• Electronic structure basis for the titanic magnetoresistance in WTe${}_2$
• Gate-Tunable Negative Longitudinal Magnetoresistance in the Predicted Type-II Weyl Semimetal WTe2
• Anisotropic Magnetotransport and Exotic Longitudinal Linear Magnetoresistance in WTe2 Crystals
• Thickness dependence of spin-orbit torques generated by WTe2
• Experimental observation of anisotropic Adler-Bell-Jackiw anomaly in type-II Weyl semimetal WTe${}_{1.98}$ crystals at the quasi-classical regime
• Raman scattering investigation of large positive magnetoresistance material WTe${}_2$
• Magnetoresistance and Quantum Oscillations of an Electrostatically Tuned Semimetal-to-Metal Transition in Ultra-Thin WTe2
• Anomalous transport near the Lifshitz transition at the LaAlO${}_3$/SrTiO${}_3$ interface

Cited by in corpus (18)

• Nonlinear Hall Effects
• Giant Magnetochiral Anisotropy in Weyl-semimetal WTe2 Induced by Diverging Berry Curvature
• Non-linear Transport in Non-centrosymmetric Systems: From Fundamentals to Applications
• Semi-Dirac and Weyl Fermions in Transition Metal Oxides
• Ferroelectric control of charge-to-spin conversion in WTe${}_2$
• Giant Third-Order Nonlinearity Induced by the Quantum Metric Quadrupole in Few-Layer WTe2
• Anisotropic Scattering in Goniopolar Metal NaSn${}_2$As${}_2$
• Electrical Magnetochiral current in Tellurium
• Optical conductivity of the type-II Weyl semimetal WTe${}_2$ under pressure
• Enhanced Non-linear Response by Manipulating the Dirac Point in the (111) LaTiO${}_3$/SrTiO${}_3$ Interface
• Electronic transport and Fermi surface of Weyl semimetal WTe2: quantum oscillations and first-principles study
• Facilitating field-free perpendicular magnetization switching with a Berry curvature dipole in a Weyl semimetal
• Quantum theory of the magnetochiral anisotropy coefficient in ZrTe${}_5$
• Nonlinear magnetotransport in MoTe${}_2$
• Sliding-induced topological transitions in bilayer biphenylene
• Persistent spin texture preserved by local symmetry in graphene/WTe${}_2$ heterostructure
• A Fermi Surface Descriptor Quantifying the Correlations between Anomalous Hall Effect and Fermi Surface Geometry
• Interacting type-II semi-Dirac quasiparticles