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Article Dans Une Revue Physical Review Research Année : 2021

Spin to charge conversion at Rashba-split SrTiO 3 interfaces from resonant tunneling

Résumé

Spin-charge interconversion is a very active direction in spintronics. Yet, the complex behaviour of some of the most promising systems such as SrTiO$_3$ (STO) interfaces is not fully understood. Here, on the basis of a 6-band $\boldsymbol{k.p}$ method combined with spin-resolved scattering theory, we give a theoretical demonstration of transverse spin-charge interconversion physics in STO Rashba interfaces. Calculations involve injection of spin current from a ferromagnetic contact by resonant tunneling into the native Rashba-split resonant levels of the STO triangular quantum well. We compute an asymmetric tunneling electronic transmission yielding a transverse charge current flowing in plane, with a dependence with gate voltage in a very good agreement with existing experimental data.

Dates et versions

hal-03768232 , version 1 (02-09-2022)

Identifiants

Citer

D. Q. To, T. H. Dang, Laurent Vila, J. P. Attané, M. Bibes, et al.. Spin to charge conversion at Rashba-split SrTiO 3 interfaces from resonant tunneling. Physical Review Research, 2021, 3 (4), pp.043170. ⟨10.1103/PhysRevResearch.3.043170⟩. ⟨hal-03768232⟩
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