English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report the observation of colossal positive magnetoresistance (MR) insingle crystalline, high mobility TaAs2 semimetal. The excellent fit of MR by asingle quadratic function of the magnetic field B over a wide temperature range(T = 2-300 K) suggests the semiclassical nature of the MR. The measurements ofHall effect and Shubnikov-de Haas oscillations, as well as band structurecalculations suggest that the giant MR originates from the nearly perfectlycompensated electrons and holes in TaAs2. The quadratic MR can even exceed1,200,000% at B = 9 T and T = 2 K, which is one of the largest values amongthose of all known semi-metallic compounds including the very recentlydiscovered WTe2 and NbSb2. The giant positive magnetoresistance in TaAs2, whichnot only has a fundamentally different origin from the negative colossal MRobserved in magnetic systems, but also provides a nice complemental system thatwill be beneficial for applications in magnetoelectronic devices

Giant semiclassical magnetoresistance in high mobility TaAs2 semimetal