Tuning the Exchange Bias Effect in 2D van der Waals Ferro-/Antiferromagnetic Fe₃ GeTe₂ /CrOCl Heterostructures.

ABSTRACT: The exchange bias effect is extremely expected in 2D van der Waals (vdW) ferromagnetic (FM)/antiferromagnetic (AFM) heterostructures due to the high-quality interface. CrOCl possesses strong magnetic anisotropy at 2D limit, and is an ideal antiferromagnet for constructing FM/AFM heterostructures to explore the exchange bias effect. Here, the exchange bias effect in Fe₃ GeTe₂ (FGT)/CrOCl heterostructures through both anomalous Hall effect (AHE) and reflective magnetic circular dichroism (RMCD) measurements is studied. In the AHE measurements, the exchange bias field (H_EB ) at 3 K exhibits a distinct increase from ≈150 Oe to ≈450 Oe after air exposure, and such variation is attributed to the formation of an oxidized layer in FGT by analyzing the cross-section

SUBMITTER: Zhang T 

PROVIDER: S-EPMC9009105 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature