Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session M50: Generation of Spins and Spin Currents
8:00 AM–10:00 AM,
Wednesday, March 16, 2022
Room: McCormick Place W-474A
Sponsoring Units: GMAG DMP FIAP
Chair: Shulei Zhang, Case Western Reserve U
Abstract: M50.00002 : Modeling spin transport through insulator interfaces*
8:12 AM–8:24 AM
Roberto E Troncoso
(Norwegian Univ Tech (NTNU))
We consider a model of a thin layer NiO oriented in (111) direction, sandwiched between a metal and a ferromagnetic insulator. We take into account nearest and next-nearest neighbor exchange coupling at the interfaces as well as different magnetic order. We compute the spin current through this system driven either by a thermal gradient or by a spin accumulation using Fermi's Golden Rule .
We find a sensitive dependence on the magnetic order as well as on the interface parameters.
 Wang et al., Phys. Rev. Lett. 113, 097202 (2014), Phys. Rev. B 91, 220410(R) (2015); Lin et al. Phys. Rev. Lett. 116, 186601 (2016).
 Khymyn et al., Phys. Rev. B 93, 224421 (2016); Rezende et al., Phys. Rev. B 93, 054412 (2016).
 Bender et al., Phys. Rev. Lett. 108, 246601 (2012).
*This work was supported by the German Research Foundation (DFG) via the project No. 417034116 and by the Research Council of Norway through its Centres of Excellence funding scheme, Project No. 262633, "QuSpin".
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