SciPost Submission Page
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: | 2023-04-03 |
| Date submitted: | 2023-02-17 11:33 |
| 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)
Reports on this Submission
Report
The authors answered well to the small questions I had asked them. The new manuscript is well presented, coherent, and deserves to be published. These theoretical results are stimulating and should lead to experimental realizations, but they are still quite speculative and the experimental feasibility is still to be demonstrated, that is why it seems to me that this paper is more appropriate for SciPost Physics Core than for SciPost Physics.
Report
The authors made some efforts to include my previous comment in favour of publishing in SciPost Physics instead of SciPost Physics Core. I do appreciate their effort for the appropriate effective model to describe their numerical predictions. Although their calculation is correct, after checking carefully the SciPost Physics Acceptance criteria, I am afraid that in spite of these extensions, this is still not sufficient for SciPost Physics, but rather remains at the level of SciPost Physics Core. . Accordingly, I recommend publication in Core
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.