Efficient spin filtering through Fe₄GeTe₂-based van der Waals heterostructures.

ABSTRACT: Utilizing ab initio simulations, we study the spin-dependent electronic transport characteristics within Fe₄GeTe₂-based van der Waals heterostructures. The electronic density of states for both free-standing and device-configured Fe₄GeTe₂ (F4GT) confirms its ferromagnetic metallic nature and reveals a weak interface interaction between F4GT and PtTe₂ electrodes, enabling efficient spin filtering. The ballistic transport through a double-layer F4GT with a ferromagnetic configuration sandwiched between two PtTe₂ electrodes is predicted to exhibit an impressive spin polarization of 97% with spin-up electrons exhibiting higher transmission probability than spin-down electrons. Moreover, we investigate the spin transport p

SUBMITTER: Davoudiniya M 

PROVIDER: S-EPMC11485126 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature