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Spatial separation of spin currents in transition metal dichalcogenides
by Antonio L. R. Manesco, Artem Pulkin
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Antonio Manesco |
| Submission information | |
|---|---|
| Preprint Link: | https://arxiv.org/abs/2206.07333v3 (pdf) |
| Code repository: | https://doi.org/10.5281/zenodo.6644551 |
| Data repository: | https://doi.org/10.5281/zenodo.6644551 |
| Date accepted: | April 3, 2023 |
| Date submitted: | Feb. 17, 2023, 11:33 a.m. |
| Submitted by: | Manesco, Antonio |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Computational |
Abstract
We theoretically predict spatial separation of spin-polarized ballistic currents in transition metal dichalcogenides (TMDs) due to trigonal warping. We quantify the effect in terms of spin polarization of charge carrier currents in a prototypical 3-terminal ballistic device where spin-up and spin-down charge carriers are collected by different leads. We show that the magnitude of the current spin polarization depends strongly on the charge carrier energy and the direction with respect to crystallographic orientations in the device. We study the (negative) effect of lattice imperfections and disorder on the observed spin polarization. Our investigation provides an avenue towards observing spin discrimination in a defect-free time reversal-invariant material.
Author comments upon resubmission
We considered all the referee reports with their minor change requests. We believe that we now address all their suggestions, and therefore we expect that the new manuscript is suitable for publication.
One of the invited referees suggested focusing on the phenomenon in transition metal dichalcogenides, instead of revisiting the theory for graphene. We made the appropriate adjustments in the manuscript to now consider a continuum model for MoS$_2$ in section 2. With this suggestion, the referee argued that our manuscript is suitable for publication in SciPost Physics, instead of SciPost Physics Core. We ask the editor and the referees to consider this change.
We provide extended answers to the referee reports.
List of changes
* Changed the continuum model from graphene to MoS$_2$.
* Update figures 2 and 3.
* Implemented other minor changes as suggested by the referees.
Published as SciPost Phys. Core 6, 036 (2023)
Anonymous on 2023-02-17 [id 3374]
I believe this work is more suitable to be published in SciPost Phys, considering its possible broad impact and its mature form after taking all referees' suggestions.