Author(s): Zhu, LJ (Zhu, Lijun); Buhrman, RA (Buhrman, Robert A.)

Source: PHYSICAL REVIEW APPLIED Volume: 15 Issue: 3 Article Number: L031001 DOI: 10.1103/PhysRevApplied.15.L031001 Published: MAR 10 2021

Abstract: After one decade of intensive theoretical and experimental explorations, whether interfacial spin-orbit coupling (ISOC) at metallic magnetic interfaces can effectively generate a spin current has remained in dispute. Here, utilizing the Ti/Fe-Co-B bilayers that are unique for the negligible bulk spin Hall effect and the strong tunable ISOC, we establish that there is no significant charge-to-spin conversion at magnetic interfaces via spin-orbit filtering effect or Rashba-Edelstein(-like) effect even when the ISOC is stronger than that of a typical Pt/ferromagnet interface and can promote strong perpendicular magnetic anisotropy. We also find a minimal orbital Hall effect in 3d Ti.

Accession Number: WOS:000632419000003

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Zhu, Lijun         AAK-6127-2021         0000-0001-8750-3847

ISSN: 2331-7019

Full Text: https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.15.L031001