Dramatically decreased magnetoresistance in non-stoichiometric WTe2 crystals
نویسندگان
چکیده
منابع مشابه
Dramatically decreased magnetoresistance in non-stoichiometric WTe2 crystals
Recently, the layered semimetal WTe2 has attracted renewed interest owing to the observation of a non-saturating and giant positive magnetoresistance (~10(5)%), which can be useful for magnetic memory and spintronic devices. However, the underlying mechanisms of the giant magnetoresistance are still under hot debate. Herein, we grew the stoichiometric and non-stoichiometric WTe2 crystals to tes...
متن کاملElectronic structure basis for the extraordinary magnetoresistance in WTe2.
The electronic structure basis of the extremely large magnetoresistance in layered nonmagnetic tungsten ditelluride has been investigated by angle-resolved photoelectron spectroscopy. Hole and electron pockets of approximately the same size were found at low temperatures, suggesting that carrier compensation should be considered the primary source of the effect. The material exhibits a highly a...
متن کاملTuning the magnetoresistance of ultrathin WTe2 sheets by electrostatic gating.
The semimetallic, two-dimensional layered transition metal dichalcogenide WTe2 has raised considerable interest due to its huge, non-saturating magnetoresistance. While for the origin of this effect, a close-to-ideal balance of electrons and holes has been put forward, the carrier concentration dependence of the magnetoresistance remains to be clarified. Here, we present a detailed study of the...
متن کاملBreakdown of compensation and persistence of nonsaturating magnetoresistance in gated WTe2 thin flakes
Yilin Wang,1,3 Kefeng Wang,1 Janice Reutt-Robey,3 Johnpierre Paglione,1 and Michael S. Fuhrer1,2,* 1Department of Physics, Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742, USA 2School of Physics, Monash University, Victoria 3800, Australia 3Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA (Rec...
متن کاملGate-tunable negative longitudinal magnetoresistance in the predicted type-II Weyl semimetal WTe2
The progress in exploiting new electronic materials has been a major driving force in solid-state physics. As a new state of matter, a Weyl semimetal (WSM), in particular a type-II WSM, hosts Weyl fermions as emergent quasiparticles and may harbour novel electrical transport properties. Nevertheless, such a type-II WSM material has not been experimentally observed. In this work, by performing s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific Reports
سال: 2016
ISSN: 2045-2322
DOI: 10.1038/srep26903