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

The pivotal role of magnetic anisotropy in stabilising two-dimensional (2D)magnetism has been widely accepted, however, direct correlation betweenmagnetic anisotropy and long-range magnetic ordering in the 2D limit is yet tobe explored. Here, using angle- and temperature-dependent tunnellingmagnetoresistance, we report unprecedented metamagnetic phase transitions inatomically-thin CrOCl, triggered by magnetic easy-axis flipping instead of theconventional spin flop mechanism. Few-layer CrOCl tunnelling devices of variousthicknesses consistently show an in-plane antiferromagnetic (AFM) ground statewith the easy axis aligned along the Cr-O-Cr direction (b-axis). Strikingly,with the presence of a magnetic field perpendicular to the easy-axis (H||c),magnetization of CrOCl does not follow the prevalent spin rotation andsaturation pattern, but rather exhibits an easy-axis flipping from the in-planeto out-of-plane directions. Such magnetic anisotropy controlled metamagneticphase transitions are manifested by a drastic upturn in tun- nelling current,which shows anomalous shifts towards higher H when temperature increases. By 2Dmapping of tunnelling currents as a function of both temperature and H, wedetermine a unique ferrimagnetic state with a superstructure periodicity offive unit cells after the field-induced metam- agnetic transitions. Thefeasibility to control 2D magnetism by manipulating magnetic anisotropy mayopen enormous opportunities in spin-based device applications.

Metamagnetic Transitions in Few-Layer CrOCl Controlled by Magnetic Anisotropy Flipping