Perfect charge compensation in WTe2 for the extraordinary magnetoresistance: From bulk to monolayer

Abstract

The electronic structure of WTe2 bulk and layers are investigated by using the first principles calculations. The perfect electron-hole (n-p) charge compensation and high carrier mobilities are found in WTe2 bulk, which may result in the large and non-saturating magnetoresistance (MR) observed very recently in the experiment [Ali et al., Nature 514, 205 (2014)]. The monolayer and bilayer of WTe2 preserve the semimetallic property, with the equal hole and electron carrier concentrations. Moreover, the very high carrier mobilities are also found in WTe2 monolayer, indicating that the WTe2 monolayer would have the same extraordinary MR effect as the bulk, which could have promising applications in nanostructured magnetic devices.

References in corpus (2)

• Titanic Magnetoresistance in WTe2
• Electronic structure basis for the titanic magnetoresistance in WTe${}_2$

Cited by in corpus (16)

• Anisotropic Magnetotransport and Exotic Longitudinal Linear Magnetoresistance in WTe2 Crystals
• High Current Density and Low Thermal Conductivity of Atomically Thin Semimetallic WTe2
• Diffusion quantum Monte Carlo study of excitonic complexes in two-dimensional transition-metal dichalcogenides
• Raman scattering in transition metal dichalcogenides MTe2 (M = Mo, W)
• Distinct Electronic Structure for the Extreme Magnetoresistance in YSb
• Magnetoresistance and Quantum Oscillations of an Electrostatically Tuned Semimetal-to-Metal Transition in Ultra-Thin WTe2
• Nearly isotropic superconductivity in layered Weyl semimetal WTe${}_2$ at 98.5 kbar
• Quantum Oscillation of Thermally Activated Conductivity in a Monolayer WTe${}_2$-like Excitonic Insulator
• Nonsaturating large magnetoresistance in the high carrier density nonsymmorphic metal CrP
• Theory of Glide Symmetry Protected Helical Edge States in WTe${}_2$ Monolayer
• Evidence of the ferroelectric polarization in charge transport through WTe${}_2$ Weyl semimetal surface
• Optical conductivity of the type-II Weyl semimetal WTe${}_2$ under pressure
• SrPd, a candidate material with extremely large magnetoresistance
• Intercalation of Alkali Metal into WTe2, the Crystal Structure of A0.5WTe2 and Observation of a Metal-to-Semiconductor Transition
• Materials and possible mechanisms of extremely large magnetoresistance: A review
• Unconventional superconductivity mediated by exciton density wave fluctuations