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arXiv · 1904.09254

Tunnel-Field-Effect Spin Filter from Two-Dimensional Antiferromagnetic Stanene

Enrique G. Marin·Damiano Marian·Giuseppe Iannaccone·Gianluca Fiori
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Abstract

We propose a device concept, based on monolayer stanene, able to provide highly polarized spin currents (up to a $98\%$) with voltage-controlled spin polarization operating at room temperature and with small operating voltage ($0.3$ V). The concept exploits the presence of spin-polarized edge states in a stanene nanoribbon. The spin polarization of the total current can be modulated by a differential tuning of the transmission properties, and of the occupation of edge states of different spin, via the application of an in-plane electric field. We demonstrate device operation using ab-initio and quantum transport simulations.

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Enrique G. Marin, Damiano Marian, Giuseppe Iannaccone, Gianluca Fiori. 2019-04-19. Tunnel-Field-Effect Spin Filter from Two-Dimensional Antiferromagnetic Stanene. https://doi.org/10.1103/physrevapplied.10.044063

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